Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 795 · 40 questions

How it works (Round and adjust): Round up: 49 is 50 − 1, 98 is 100 − 2. Multiply by the round number. Take away the number times the bit you added.

1. 1.7 × 9 =
2. 2.12 × 49 =
3. 3.7 × 9 =
4. 4.5 × 9 =
5. 5.9 × 9 =
6. 6.3 × 29 =
7. 7.10 × 99 =
8. 8.4 × 29 =
9. 9.9 × 49 =
10. 10.14 × 19 =
11. 11.28 × 98 =
12. 12.11 × 9 =
13. 13.15 × 29 =
14. 14.10 × 9 =
15. 15.15 × 9 =
16. 16.12 × 49 =
17. 17.15 × 9 =
18. 18.9 × 19 =
19. 19.40 × 99 =
20. 20.4 × 9 =
21. 21.15 × 9 =
22. 22.11 × 49 =
23. 23.3 × 9 =
24. 24.35 × 99 =
25. 25.18 × 98 =
26. 26.12 × 9 =
27. 27.9 × 99 =
28. 28.12 × 19 =
29. 29.9 × 29 =
30. 30.13 × 9 =
31. 31.11 × 29 =
32. 32.36 × 99 =
33. 33.3 × 29 =
34. 34.18 × 98 =
35. 35.3 × 99 =
36. 36.38 × 99 =
37. 37.15 × 19 =
38. 38.18 × 99 =
39. 39.15 × 9 =
40. 40.5 × 9 =

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