Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 765 · 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. 1.5 × 9 =
2. 2.10 × 19 =
3. 3.9 × 19 =
4. 4.9 × 29 =
5. 5.9 × 98 =
6. 6.3 × 29 =
7. 7.28 × 98 =
8. 8.14 × 9 =
9. 9.21 × 99 =
10. 10.39 × 98 =
11. 11.15 × 29 =
12. 12.6 × 29 =
13. 13.8 × 49 =
14. 14.14 × 29 =
15. 15.14 × 98 =
16. 16.31 × 99 =
17. 17.23 × 99 =
18. 18.12 × 9 =
19. 19.13 × 29 =
20. 20.3 × 29 =
21. 21.15 × 9 =
22. 22.21 × 99 =
23. 23.12 × 29 =
24. 24.27 × 98 =
25. 25.18 × 98 =
26. 26.13 × 19 =
27. 27.3 × 49 =
28. 28.10 × 9 =
29. 29.5 × 19 =
30. 30.17 × 98 =
31. 31.35 × 98 =
32. 32.26 × 99 =
33. 33.15 × 29 =
34. 34.9 × 19 =
35. 35.5 × 49 =
36. 36.3 × 99 =
37. 37.6 × 19 =
38. 38.6 × 19 =
39. 39.7 × 9 =
40. 40.19 × 98 =

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