Explain how making a factor 100 times the size affects the product

Maths

In this unit pupils will explain the relationship between multiplying and dividing a number by 10 and multiples of 10.  In the future unit pupils will describe represent and order tenths as decimal fractions. They will round decimal numbers with tenths to the nearest whole number.

In the prior unit pupils used knowledge of the distributive law to calculate products beyond known times tables facts. In this unit pupils will explain the relationship between multiplying and dividing a number by 10 and multiples of 10. 

Understand what happens when a number is multiplied or divided by 10 and 100

True or false? If one factor is made 100 times the size the product will be 100 times the size.

Match the equations to the related multiplications with a factor 100 times the size.

Match the expressions with the same value.

4 classes each raise £700 for charity. How much have they raised altogether? £{{ }}

Which of the numbers in the following equation are factors? 4 × 12 = 48

Match the times table expressions with the correct product.

Which of these times table facts is being shown by the array?

Match the expressions showing commutativity.

Tick the expressions that this array is showing.

True or false? To multiply a whole number by 100, place two zeros after the final digit of that number.

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