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# Double double strategy multiplication

Multiply by 4 using the multiplication strategy Double DoubleThis video is part of a multiplication resource found at bit.ly/GoogleMultiplication . www.surf.. The Double-Double and Double-Double-Double strategies have students multiplying a factor by the prime numbers that build 4 and 8. When students understand that 4 = 2 x 2 and 8 = 2 x 2 x 2, they are given a tool in their mathematical toolbox when approaching more complex problems Doubling works for other even numbers, like 6 facts and 8 facts. Once your child knows their 3s facts, they double to solve for 6s; once they know their 4s facts,× 8 look at a fact that is commonly difficult for children: 7 × 6 or 6 × they double to solve8s. Have a 7 Understanding Halving and Doubling- a Multiplication Strategy for 1 digit by 2 digit equations Halving and doubling is a multiplication strategy where one factor is halved while the other factor is doubled, resulting in an a problem that's easier to solve mentally! This is a seat scoot game, wher

### Multiplication Strategy Double Double x4 - YouTub

1. For this multiplication problem and many others, knowing how to double efficiently is a great strategy. Doubling is a strategy that people of all ages frequently use. Young children first learn doubles as an addition of two groups. What multiplication facts can be used by using a doubling strategy
2. The doubles strategy in multiplication builds on the doubling skills that the kids already have. The 4 times table just doubles the answers in the 2 times table (and 8 doubles 4, 16 doubles 8, etc). The games I've made start at an easy level (the one shown above), to help support my kiddos who find maths a bit trickier
3. PowerPoint with an animation showing the double-double-double strategy to help students work out answers when multiplying by 8. Starts with some easier multiplications (1x8, 2x8, 5x8, 3x8), Then covers all the x8 facts upto x12, Then has some trickier numbers to multiply (two digit and three digits
4. Double, Double, Double by Doug French Knowing multiplication tables by heart is an important requirement for success in mathematics and effective ways of learning them should be a key component of any policy for improving standards of numeracy. It is widely assumed that the reason students do not know their tables is becaus

### DOUBLE-DOUBLE, and other multiplication strategies From

1. The halving and doubling strategy for multiplication is one of the most fascinating multiplication strategies. The best part is that it actually IS a strategy - not a trick. First, let's take a look at the halving and doubling strategy in action. To use halving and doubling, you simply half one of the factors and double the other
2. Multiply by 8 using the Double, Double, Double Strategy To multiply a number by 8, double it, double it and double it again. This is known as the double, double, double strategy. This is because 8 = 2 × 2 × 2
3. Well, whenever you multiply by 4, you are doubling TWICE
4. Typically, if a student can remember to double and then double and then double for the 8s, they are able to actually memorize the math facts. Instead, I prefer to use multiplication strategies that are conceptual in nature and work with any multiplication problem (though some are definitely more efficient with specific multiplication facts)
• multiplication clusters. Within that cluster are the twos facts (double), the fours facts (double, double), and the eights facts (double, double, double). During this stage it is important that strategies are introduced sequentially as the thinking required to learn one set of facts is a prerequisite for the next set of facts in the cluster
• A NEW Multiplication strategy to help students who have struggled with the order of multiplying double digit numbers. A combination of 2 Shapes are used (instead of just 1 shape) to help prompt the student of which 2 numbers to multiply for each step. This is the missing prompt that have helped man
• Please subscribe and share! New videos added weekly.Find the Doubling Strategy card used in this video in the Box of Facts Multiplication/Division kit www.or..
• Download and print Turtle Diary's Multiplication Strategies (Using doubles) worksheet. Our large collection of math worksheets are a great study tool for all ages
• The Distributive Law - which sounds scary but basically means splitting it into two easy multiplications - so 4 x 16 becomes (4 x 10) + (4 x 6) Or sometimes, such as in this example, it's just perfect for the half and double metho
• Doubling a number twice is the same as multiplying by 4. A useful strategy for multiplying by 4 is to double the other amount twice. This strategy relies on knowing the 2x number facts, including some facts beyond the basic single-digit multiplication facts

### Multiplication Doubling Strategy Worksheets & Teaching

Lesson Topic: Multiplication Basic Facts - 2x (Double Strategy) Concept/s in Focus: • Multiplication is knowing the number OF groups and the number IN EACH group and wanting to find the Total • Multiplication can be represented as equal groups (set model) e.g. 2x5 ***** **** A NEW Multiplication strategy to help students who have struggled with the order of multiplying double digit numbers. A combination of 2 Shapes are used (instead of just 1 shape) to help prompt the student of which 2 numbers to multiply for each step As long as you know a few multiplication facts, you can use this strategy to figure out and learn new facts. To use this strategy, find a set of facts that is known to you. Then, double one factor.. The first method to solve double digit multiplication problems is called the traditional method in which the two numbers being multiplied are lined up on top of each other so that single digit..

### The Doubling Strategy for Multiplication ORIGO Educatio

multiplication and division facts that relate in certain ways. Second, students need to understand those relationships. These lessons are designed to assist If either factor is even, a half then double strategy can be used. Select the even factor and cut it in half. If the smaller fact is known, that product is doubled to get the new fact The key to using the halving and doubling strategy is choosing when it makes the problem easier. Here is a guide: Is one of the sides 5? If so, doubling will give 10 which is easy. Is the side I need to halve even? Does one side include a half or 0.5? If so doubling will remove it. And that's it. A handy little multiplication strategy to add to. Math Strategy: Doubling in Multiplication Math Strand: Number Sense Multiplication . Overview: Students begin to use doubles in the early elementary years when learning addition facts. For example, students are doubling when they compute 3 + 3 = 6, 7 + 7 = 14, and 15 + 15 = 30. Soon they recognize that 3+3=6 is the same as 3 doubled (3 x 2)=6 The Distributive Model as a Multi-Digit Multiplication Strategy. For some reason, teachers don't like to tackle the distributive property and/or the students fear it. But, if you have worked your way up using the previous methods, this strategy isn't as scary as it appears Multiplication and Division SERIES TOPIC F 1 1 Doubling is a useful strategy to use when multiplying. To multiply a number by four, double it twice. To multiply a number by eight, double it three times. 15 × 4 double once = 30 13 × 8 double once = 26 double twice = 60 double twice = 52 double three times = 10

Double By Double Multiplication Some of the worksheets for this concept are Double digit multiplication, Multiplication strategy doubling and halving, Two digit multiplication work, Multiplication work halving and doubling strategy, Multiplication, Grade 4 supplement, Multiplication tips and tricks, Multiplying 2 digit numbers with guides mm2 1 This Double-Double rule works for anything multiplied by four, and is easy to apply if basic addition has already been covered. A handful of these rules cuts 90% of the multiplication table away so that memorization is only required for ten facts Question #3 is always a multiplication problem. The problems in August are basic multiplication facts kids should know, but in November it switches to double-digit and coincides perfectly with the end of our multiplication unit. In order to better practice all four strategies, I created a rotation for the strategies as shown in the image below

DOUBLE-WHAMMY! Unpacking What's Really Happening Here Number Properties Under the Hood of the Halving and Doubling Strategy. While it might not seem apparent initially, we have done a lot with number properties in order to be able to apply a halving and doubling strategy to this seemingly simple multiplication problem Multiplying by 3. Use a double to help with the 3 times tables. Double the factor and add it one more time. But if your students struggle with this, skip counting from a number they know is also a great strategy

### The Doubles Strategy for Multiplicatio

Similar to the double it, double it again, double it again, but a little more advanced. If students know their 4x tables, they can use those as well. Example: I don't remember 8×7, but I know 4x7=28. So, 8×7=2(4×7)=2×28=40+16=56. Also, like the 9 strategy, students can use their 10's Welcome to The Halving and Doubling Strategy with Easier Questions (A) Math Worksheet from the Multiplication Worksheets Page at Math-Drills.com. This math worksheet was created on 2017-05-05 and has been viewed 150 times this week and 496 times this month. It may be printed, downloaded or saved and used in your classroom, home school, or other educational environment to help someone learn math The goal of the game is to practice the strategy of doubling (multiplying by 2) or double-doubling (multiplying by four). Think of it this way. Double 6 is 12. Double 12 is 24. So that means that double-double 6 is 24 Mathematically speaking, it's the same as 2 x (2 x6) or 4 x 6 Doubles (2's) Multiplying by 2 is the same as adding doubles in addition. The product is always even. 6 + 6 = 12 and 6 x 2 = 12 3. Fives (5's) Multiplication Strategies M. Bray 10/2008 6. Helping facts The remaining facts can be related to already known facts, usually in several different ways. a. Double (x 2.

Working with double-digit multiplication worksheets at home helps build confidence by familiarizing children with standard mathematical concepts. These printables are teacher inspired and offer unique opportunities to grow, with vocab cards, multiplication worksheets, money problems, and more Herein, what is the double strategy in multiplication? Doubling. As long as you know a few multiplication facts, you can use this strategy to figure out and learn new facts. To use this strategy, find a set of facts that is known to you. Then, double one factor (or add the number to itself), and double the product, or answer from the first set.

1. Write the double-digit numbers on top of each other. Place 1 of the double-digit numbers on top and the other double-digit number directly below it. While there's no right or wrong way to place the numbers, if you have a double-digit that ends with a zero such as 40, place it on the bottom, and put any number with more (nonzero) digits on. Multiplication Strategies (x0) Zero Facts The product of any number and 0 is 0. 7x0=0 0x4=0 (x1) Ones Facts The product of any number multiplied by 1 is that number. x8 Double-Double-Double To multiply by 8, double it, double the result and then double the result one last time. 8x5=((2x5)x2)x2=((10x2)x2) A couple weeks ago I posted a fun Bump game featuring the doubles strategy for learning multiplication facts, and today's freebie features more practice on that same strategy. Basically, this strategy makes connections between the 2s, 4s, and 8s. If a student knows 2 x 5 = 10, then 4 x 5 would be double that, or 20, because 4 is double 2 Doubles facts (× 2) To multiply by 2, double the other number. This isn't a strategy so much as a category of facts that tend to come more easily for students. 7 × 2 = 14 2 × 3 = 6 Doubles Plus One Set facts (× 3) 3 × n = (2 + 1) × n = 2 × n + 1 × n = 2 × n + n To multiply by 3, double the number then add that number one time Multiplication Strategy: Making Landmark or Friendly Numbers 11 Multiplication Strategy: Partial Products 12 Multiplication Strategy: Doubling and Halving 1

To use skip-counting to arrive at a multiplication answer, skip count to the number you are multiplying by 2. 4 FACT FAMILY | DOUBLE-DOUBLE To remember the 4 fact family, double the number that is being multiplied by 4 twice. For example, to multiply 4 x 6, 6 doubled once is 12, and 12 doubled once is 24 Multiplying Doubles 1 to 12 (Horizontal Questions - Full Page) This basic Multiplying Doubles worksheet is designed to help kids practice multiplying doubles, for numbers 1 through 12 with multiplication questions that change each time you visit. This math worksheet is printable and displays a full page math sheet with Horizontal Multiplication questions Lattice multiplication creates a grid with double-digit numbers placed on the outside. There are diagonal lines that run through the grid to divide the grid boxes into halves. As each number is multiplied, the values are placed inside the grid. Once all the multiplying is done, the numbers are then added down from the right to left, moving.

• Using strategies as a way of thinking about and organising basic facts is a beneficial way to learn multiplication basic facts while building conceptual understanding and number sense relating to multiplication. • A double is two groups/rows/length that have the same quantity in each. A double can b Multiplication strategies make it faster and easier for kids to learn the times tables. Learn tried-and-true multiplication strategies (as well as the best order for teaching the multiplication facts) that will help your kids master multiplication. Strategy: Double the related ×2 facts. Just like with the ×3 facts, your child can use the.

Strategies for Basic Multiplication Facts First, some fundamental concepts kids need to understand. They are Four goes to Tim Horton's and orders a double, double, Double the other number, then double again. 6 x 4 = Double 6 = 12 Double 12 = 24 X 8 = double, double, double The 4's multiplication facts are typically an easy set of facts to learn. This is because there is a specific strategy for this set of facts that is very effective. The 4's facts can be thought of as the doubles' doubles. For example, when you have an equation like 4×5, you can double the 5 to make 10, and then double the 10 to make 20 Multiplication of whole numbers. Unit Description: Multiplication of numbers 1-10. Lesson Description for Day: Multiplication facts by using a Doubling Strategy for multiples of eight State Standards: Number Sense and Operation Strand . 3.N.21 Use the area model, tables, patterns, and doubling to provide meaning for multiplication Multiplication Strategy Notebook 4th Grade MCC4.NBT.5 This strategy notebook is designed to be a reference for teachers when they are teaching the strategy standards in whole group. STUDENTS DO NOT HAVE TO MASTER The factors on the left double every time, and the factors on the right halve each time. This strategy can work with severa

This can be furthered to double, double double, double double double. Counting . The counting strategy is used for the multiplication and division of numbers in the 5x fact clusters. Build Up/ Down . Building up using 3x and 6x is used to demonstrate multiplication and division. Building down is used for 9x fact clusters Doubles and Near Doubles Strategy to Subtract Games for 1st Graders. Use Double Facts to Subtract. Building a strong foundation in subtraction strategies is an important step in helping your child become proficient and confident. The game requires students to recall concepts related to subtraction and find answers to a group of problems to move. Jan 28, 2013 - This is one of my FREE products to share a fun multiplication strategy! Help your students learn how to use patterns in multiplication to solve multiplication equations. This activity encourages students to use the doubles strategy to solve larger equations using mental math. This activity support.. Near-doubles are facts that have one added that is one more than the other addend. Students need to be comfortable with their doubles before they can attempt to use this strategy effectively. Doubles and near doubles appear in the Addition & Subtraction continuum. Doubling, a similar strategy, can be found on the multiplication/division continuum Then, I let them practice, using whatever method or strategy is most effective and comfortable for them! Multiplying Double Digits: Game Ideas. If you're looking for some extra practice for your kids to multiply double digits, here are some games you might enjoy. Printable board games to practice double digit multiplication

### Double-Double-Double Strategy Multiplication Eight Times

A Doubles Strategy, quite simply put, is to count by doubling a given number. You could also say that it is the 2 times table. Doubles occur everywhere in life. For example: an egg carton is 6 + 6 = 12 eggs. two hands are 5 + 5 = 10 fingers. 2 packs of 8 crayons has 8 + 8 = 16 crayons. two weeks are 7 + 7 = 14 days 4 times multiplication with double-double strategy. To help learn four times table. Highly visual, interactive slides with arrays of dots, hundred squares, input-output machine, step counting, and various sum flashcards. PowerPoint activity/presentation progressing in this slide order: Counting in steps of four up to 100 from 0 Multiplication Facts Practice. The study sets in this folder cluster the multiplication facts around specific thinking strategies: * Use-Ten * Doubling * Build Up * Build Down. Sort Doubles and Near Doubles Strategy to Add Games for 1st Graders. Make Use of Doubles to Add. Puzzle: there are three friends in the maze but they can only get out if there is one. Play to find out more and solve this puzzle! Improve your child's proficiency in addition using doubles with this game

### How to Use Halving and Doubling for Multiplication

1. Doubles to double 6 (including multiples of 10 to double 60) Doubles to double 12 (including multiples of 10 to double 120 and other key doubles) Doubles to double 20 (including multiples of 10 to double 200) Doubles to double 5
2. Double And Half. Double And Half - Displaying top 8 worksheets found for this concept.. Some of the worksheets for this concept are Doubling halving, Double and half angle identities date period, Multiplication strategy doubling and halving, Finding halves by undoing doubles, Double and half, Doubling and halving money, Algebra2trig chapter 1213 packet, Double angle formulas and half angle.
3. A set of five posters with clear examples of multi-digit multiplication strategies. 5 pages 4 - 7. teaching resource Split Strategy PowerPoint. An 11-slide teaching presentation that focuses on the split strategy. 11 pages 2 - 3. teaching resource Making Tens Subtraction Worksheet
4. Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 x 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations

x 1: The product is the same as the factor being multiplied by 1 x 2: Just double the number that is being multiplied by 2 (use your doubles from addition) x 3: Doubles plus one group (5x3 = 5x2 plus 5x1. x 4: Double Double (5x4 = 5x2x2. This is 5 doubled [10] and then double that answer to get 20) x 5: Multiply by 10 and then cut it in half or skip count by 5's like on a clock You will double the 9, which equals s18 (1 st double) 14. Next, you double the 18, which equals 36 (2 nd double) 15. Lastly, you double the 36,which equals 72 (3 rd double) Guided Practice: The students will break into pairs and work on the multiplication problems that I will distribute The double double double strategy. Take the number you're multiplying by 8, then double it. Take that sum and double that. Then double it one last time. 8 x 16 1) Double: 16 + 16 = 32 2) Double your answer: 32 + 32 = 64 3) Double that answer one last time: 64 + 64 = 128 8 x 16 = 12

### Multiplying by 4 and 8 using Doubling - Maths with Mu

Multiplication Strategies Double-Doubles When learning strategies for multiplication, students should realise that when a four is one of the numbers in the calculation, the answer may be found by doubling the other number, then doubling it again. For example with 4x3, students could say Double 3 is 6. Double 6 is 12. The answer is 12 Welcome to The Halving and Doubling Strategy with Harder Questions (A) Math Worksheet from the Multiplication Worksheets Page at Math-Drills.com. This math worksheet was created on 2017-05-05 and has been viewed 51 times this week and 168 times this month. It may be printed, downloaded or saved and used in your classroom, home school, or other educational environment to help someone learn math Mental multiplication strategies - doubling and halving We can use the double and halve strategy to get to an easy multiplication fact. 15 × 18 Double 15 and halve 18 30 × 9 This is an easier fact to work with. = 270 Solve these using the double and halve strategy: Look at the options below The goal of the game is to practice the strategy of doubling (multiplying by 2) or double-doubling (multiplying by four). Think of it this way. Double 6 is 12. Double 12 is 24. So that means that double-double 6 is 24. Mathematically speaking, it's the same as 2 x (2 x6) or 4 x 6

### Multiplying by 4 Double Double Strategy on Vime

1. It's as simple as that! Once the kids understand how to set up the box, they do remarkably well with this strategy. When teaching the Box Method I initially let the kids use a times table chart to help them. I am more concerned with them understanding the process of double or triple digit multiplication
2. Using an Area Model to Teach Double Digit Multiplication: One of the most common mistakes teachers make is going too quickly into the abstract, which is probably why your student is stuck. So, let's go back a step and show what multi-digit multiplication means. I'm going to create a story around my model. I do this every time I teach a.
3. LEARN THE DOUBLES. Look at the doubles on the multiplication matrix. The answers form stairs descending from 1 to 100, don't they? x
4. Explain the near doubles strategy that could also be used. E.g: 24, 25. Double 25 and then adjust by 1. Again circle two different adjacent numbers and have the students use the near doubles strategy to add the numbers to find the answer. Pairs: Give each pair of students various numbers cards. They work with 100-grids to find adjacent numbers.
5. Multiplying 3-digit by 1-digit (regrouping) Multiplying 4-digit by 1-digit (regrouping) Practice: Multiply with regrouping. Multiplying 2-digit numbers. Multiplying 2-digit by 2-digit: 36x23. This is the currently selected item. Multiplying 2-digit by 2-digit: 23x44. Practice: Multiply 2-digit numbers. Multiplying multi-digit numbers
6. Multiplication Strategy: Introduce the second mental strategy for multiplication - 'Double doubles' Double the number and double again for 4 x tables. eg. 31 x 4 = double 31 = 62 then double again = 124 Give student a series of 'double doubles' multiplication Give students a series of 'Halving, halving' questions to Sing the facts
7. 5 Background Knowledge for Teachers Stages of Progression Arthur Baroody 1 identifies three stages through which children progress in order to acquire the basic facts of addition, subtraction, multiplication and division: 1. Counting Strategies: using object counting (for example blocks or fingers) or verbal countin

### Multiplication Strategies for 4th and 5th Grad

Multiplication and division strategies Double Double Boil and Bubble We are practising doubling numbers with 2 or more digits. Exercise 1 - W or Nothing! What to do 1) Use your doubling strategies to double these numbers 2) Do the problems in your head 3) Record the answers 1) 2 (2) 12 (3) 42 4) 3 (5) 23 (6) 34 7) 4 (8) 44 (9) 84 10) 5 (11. Title: Multiplication-Strategy-Doubling-and-Halving Author: K-5MTR Subject: Keywords: Created Date: 6/23/2021 3:59:27 P Building mental strategies for multiplication facts . Adapted from 'Building mental strategies for multiplication facts', Dianne Siemon 2008 . Based on known facts/strategies, arrays and regions . The following strategies need to be interpreted in relation to the Multiplication Table below. Note: facts are read ACROSS the rows. 1. The 2s fact It was time to learn how to estimate double digit by double digit. Using a constructive approach, I developed a SB file that begins by encouraging students to think about estimation of these products by using what they understand about place value. I opened up the lesson with the first page of the double digit multiplication estimation SB file Multiplication Strategies. Fact Fluency Games: Multiplication. To multiply by 3, double the other number than add one more set of that number. 3 = 2 + 1 3 x 6 = (2 x 6) + 6 3 x 15 = (2 x 15) + 15 . Visualizing Arrays. The array provides a visual model for multiplication. The numbers being multiplied correspond to the dimensions of the.

Doubling is a useful strategy to use when multiplying. To multiply a number by four, double it twice. To multiply a number by eight, double it three times. 15 × 4 double once = 30 13 × 8 double once = 26 double twice = 60 double twice = 52 double three times = 104 Mental multiplication strategies - doubling strategy Multiplication Tips and Tricks Some Tips and Tricks. Here are some tips and tricks to help you with multiplication. Everyone thinks differently, so just ignore any tricks that don't make sense to you. Example: 8×6: double 6 is 12, double 12 is 24, double 24 is 48. 9

### Double Double Multiplication Worksheets & Teaching

Learn the best way to teach multi-digit multiplication and long division. This differentiated strategy helps 3rd grade, 4th grade, 5th grade, and special education students. If you're looking for the best strategies for teaching multi-digit multiplication and long division, you've found a great place to start Double, double, double (4 x 14) is double 14, so double 28 so 56 Change to a multiplication you know (3 x 18) 3 x 3 x 6 Multiply by 50 (50 x 72) think of 50 as half of a hundred so 100 x 72 =7200 now half it so half of 72 hundred is 36 hundred or 360

### Teaching the Doubling Strategy for Multiplication - YouTub

Working with double-digit multiplication worksheets at home helps build confidence by familiarizing children with standard mathematical concepts. These printables are teacher inspired and offer unique opportunities to grow, with vocab cards, multiplication worksheets, money problems, and more. Double--digit multiplication worksheets are for. one set of multiplication (or division) number facts. They are valuable strategies that rely on a student's ability to derive personal thinking strategies for solving particular unknown facts. Typically, these strategies develop after students have developed fluency with using doubles, using 10, using square facts and using a rule. Use a. Multiplication Facts Worksheet: Doubles (1 of 7) Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 x 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers The mental multiplication tricks and tips in this post will let you do mental math faster than a calculator entirely in your head. There are many mental strategies for multiplication, but the mental multiplication strategies covered here can be applied to multiply any set of numbers. Learning the mental multiplication tips in this post wil Recall and use multiplication facts for the 2, 5 and 10 multiplication tables Derive and use doubles of simple two-digit numbers (numbers in which the ones total less than 10) Derive and use halves of simple two-digit even numbers (numbers in which the tens are even) Recognise odd and even numbers Mental Strategie

### Multiplication Strategies (Using doubles) Worksheet

Helpful Information_Mental strategies_Mult_Div The Split strategy includes situations involving doubling and halving. These may require the user to: • partition (break up) one or both numbers into multiples of 2, 4 or 8 • double or halve as required • recombine the parts to make the product or quotient. Multiplication Multiplication Doubles Worksheet. Posted in worksheet, April 23, 2020 by Veranda Welcome to the multiplying doubles up to by (a) math worksheet from the multiplication worksheets page at math-drills.com. this math worksheet was created on -- and has been viewed times this week and times this month. it may be printed, downloaded or saved and used in your classroom, home school, or other. Choose from 500 different sets of facts multiplication 4 strategies flashcards on Quizlet. Doubles Plus ONE set. Multiply by 8. Multiply by 9. Multiply by 4. Multiply by 3. Double Double Double. Multiply by 8. Tens minus one set. Multiply by 9. 8 terms. nrake0. Chapter 4 Vocabulary: Multiplication Facts and Strategies

### The Half and Double Method of Multiplication Komod

Practising the strategy. for6+ 8,think doubles. for. 6+ 8, think. double 6 plus two. for. 6 + 8, think double 8 minus two. Building on Known Doubles - Gr 2, 3. Concept: Addition, Subtraction. Meaning:Students learn doubles, and use this to extend facts. Concept: Multiplication, Division. Meaning: Using an ordered arrangement to show. Teaching strategies for understanding multiplication isn't enough. Students need to also be taught multiplication shortcuts so they can learn their facts! (Since students usually know that two is double from 2nd grade, it is really like a review, and they are only learning two shortcuts.) Our next lesson is the factors of three and six, and.