KS1 & KS2 maths curriculum

In this unit, pupils extend their knowledge of multiplication as scaling to understand that multiplying by 10 makes a number ten times the size and dividing by 10 makes it one-tenth times the size. They explain the role of zero as a placeholder when calculating with whole numbers and multiplying and dividing by 10 and 100. Pupils also explore what happens to the product and quotient when factors and dividends are made 10 or 100 times the size and apply this thinking to their multiplication facts.

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