Nz Maths Multiplication Strategies

The students can use similar strategies for question 4c.

Nz maths multiplication strategies. Ao elaboration and other teaching resources derive multiplication facts from 2 5 and 10 times tables. Using common factors and multiples for example 37 41 40 38 as 4 x 40 4 using the distributive property for example 24 x 36 20 x 36 4 x 36 9 x 78 9 x 80 9 x 2 or 276 12 240 12 36 12 using the associative property for example 12 x 33 4 x 99 or 216 12 216 2 2 3 and inverse operations reversing for example 354 6 as 6 x 354. Useful strategies for division include proportional adjustment with factorisation rounding and compensating and partitioning or chunking. Write the multiplication basic fact in the rectangle for example 8 x 2 16 or 2 x 8 16.

Building on two digit place value. So eight lots of 3 makes 24 or 8 x 3 24. Now let s talk about those multiplication strategies. An even more efficient strategy would be to double the answer to 3a.

I like to encourage my students to add quicker by combining and add mentally. Comments on the exercises. Players take turns until one player is trapped. This is a typical strategy that most students begin with.

Use a range of additive and simple multiplicative strategies with whole numbers fractions decimals and percentages. Multiplication strategy 1 repeated addition. Or a different pair of factors with the same area for example four columns of four. Strategies from the alim project for students not on track to meet the expected level.

Repeated addition doubles eight lots of 3 which they have just solved in 3b minus 3. Place value to four digits. Recall multiplication facts use the rounding and compensating strategy when multiplying whole numbers use the place value strategy to solve problems involving whole numbers. In this activity students who can use place value and compensating with whole numbers learn to use these strategies when multiplying decimals.

Taught by michael holmes. Building with tens and hundreds. Useful strategies for multiplication include place value partitioning rounding and compensating proportional adjustment and factorisation. This objective also involves calculating powers for example.

Mark out a rectangle of that size for example 8 rows of 2 or 2 columns of 8. The numbers get larger. Strategies expected at level four include. Number lines and bead strings.

Place value with two digit numbers. Stage 4 to stage 5 strategies this course will help you move from stage 4 maths to stage 5 maths strategies for multiplication and division. The home of mathematics education in new zealand.