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

Year 4 • Maths

We've put the lessons in order helping you build on what you've learned before so it’s best to start with the first lesson of a unit.

Choose a lesson (15)

Explain the relationship between multiplying a number by 10 and multiples of 10

Understand that multiplying by 10 makes a number ten times the size

Use place value to explain placing a zero after the final digit when we multiply whole numbers by 10

Understand that dividing a number by 10 makes it one-tenth times the size

Use place value to explain removing the zero in the ones from a multiple of ten when we divide by 10

Explain the relationship between multiplying a number by 100 and multiples of 100

Explain the use of placeholders when multiplying whole numbers by 100

Explain the removal of placeholders when dividing whole numbers by 100

Use knowledge of the composition of 100 to multiply and divide by 100 in different ways

Explain how making a factor 10 times the size affects the product

Explain how making the dividend 10 times the size affects the quotient

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

Explain how making the dividend 100 times the size affects the quotient

Scale known multiplication facts by 100

Scale division facts derived from multiplication facts by 100