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Oak National Academy
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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)

1
Explain the relationship between multiplying a number by 10 and multiples of 10
2
Understand that multiplying by 10 makes a number ten times the size
3
Use place value to explain placing a zero after the final digit when we multiply whole numbers by 10
4
Understand that dividing a number by 10 makes it one-tenth times the size
5
Use place value to explain removing the zero in the ones from a multiple of ten when we divide by 10
6
Explain the relationship between multiplying a number by 100 and multiples of 100
7
Explain the use of placeholders when multiplying whole numbers by 100
8
Explain the removal of placeholders when dividing whole numbers by 100
9
Use knowledge of the composition of 100 to multiply and divide by 100 in different ways
10
Explain how making a factor 10 times the size affects the product
11
Explain how making the dividend 10 times the size affects the quotient
12
Explain how making a factor 100 times the size affects the product
13
Explain how making the dividend 100 times the size affects the quotient
14
Scale known multiplication facts by 100
15
Scale division facts derived from multiplication facts by 100