Multiplication and Division Mastery: Boost Your Skills in Maths

1. Year 6 SATs Booster Maths 2 Multiplication and Division Part 1

2. Objectives: • Multiply and divide mentally by 10, 100 and 1 000 and explain the effect. • Use jottings to help with multiplication. Vocabulary: product hundreds digit partition thousands tens

4. Multiplication

5. 9 X 10 thousands hundreds tens units 0 9 When we multiply the digits move to the left When we multiply by 10 the digits move one place to the left hundreds thousands tens units 9 0 Zero is the place holder.

6. 91 X 10 thousands hundreds tens units 9 0 1 hundreds tens thousands units 9 1 0

7. 20 X 100 thousands hundreds tens units 0 2 0 0 When we multiply the digits move to the left When we multiply by 100 the digits move two places to the left thousands hundreds tens units 2 0 0 0

8. Try these…

9. 28 X 10 thousands hundreds tens units 2 0 8

10. 32 X 100 thousands hundreds tens units 0 3 0 2

11. 75 X 100 thousands hundreds tens units 0 7 0 5

12. 81 X 100 thousands hundreds tens units 0 8 0 1

13. 781 X 10 thousands hundreds tens units 7 8 0 1

14. 404 X 10 thousands hundreds tens units 4 0 0 4

15. When we use decimals, the columns headings are thousands hundreds tens units tenths 0 1 1 one unit or one whole one one tenth of a whole one

16. 2 1 2.1 x 10 thousands hundreds tens units tenths

17. 2.3 x 10 thousands hundreds tens units tenths hundredths 0 2 3

18. 55.4 x 10 thousands hundreds tens units tenths hundredths 5 5 4

19. 7.25 x 10 thousands hundreds tens units tenths hundredths 7 2 5

20. 28.9 x 100 thousands hundreds tens units tenths hundredths 2 8 9

21. 205.03 x 10 thousands hundreds tens units tenths hundredths 0 5 2 0 3

22. 179.25 x 100 thousands hundreds tens units tenths hundredths 7 9 1 2 5

23. Some multiplication calculations …

24. Write digits in the boxes to make the calculation correct. x 81 =

25. Write digits in the boxes to make the calculation correct. ) ) 4 x 5 30 = +

26. Write digits in the boxes to make the calculation correct. ) ) 4 x 6 16 = -

27. Write digits in the boxes to make the calculation correct. ) ) 40 = x 3 7 ─

28. What might the missing numbers be? 90 x =

29. What is the missing digit? 4 x 6 2 7 6

30. Division

31. 4 4 2 2 0 0 4200 ÷ 10 thousands hundreds tens units When we divide the digits move to the right 0 When we divide by 10 the digits move one place to the right tens thousands hundreds units

32. 3 3 5 5 0 0 3 500 ÷ 100 thousands hundreds units tens When we divide by 100 the digits move two places to the right thousands hundreds tens units

33. Try these…

34. 7 6 0 0 7 600 ÷ 100 thousands hundreds tens units

35. 30 ÷ 10 thousands hundreds tens units 3 0

36. 3 1 310 ÷ 10 thousands hundreds tens units 0

37. 5 7 570 ÷ 10 thousands hundreds tens units 0

38. 9 0 0 0 9 000 ÷ 100 thousands hundreds tens units

39. 9 9 990 ÷ 10 thousands hundreds tens units 0

40. 8 0 0 8 000 ÷ 10 thousands hundreds tens units 0

41. 2 4 0 0 2 400 ÷ 100 thousands hundreds tens units

42. 5 170 ÷ 10 thousands hundreds tens units 5 1 7 0

43. 4 010 ÷ 10 thousands hundreds tens units 4 0 1 0

44. When we use decimals, the columns headings are thousands hundreds tens units tenths 0 1 1 one unit or one whole one one tenth of a whole one

45. 2 1 21 ÷ 10 thousands hundreds tens units tenths

46. thousands hundreds tens units tenths hundredths 1 1 1

47. Try these…

48. 2 ÷ 10 thousands hundreds tens units tenths hundredths 0 2

49. 55 ÷ 10 thousands hundreds tens units tenths hundredths 5 5

50. 25 ÷ 100 thousands hundreds tens units tenths hundredths 2 0 5