Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 129 · 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. 1.15 × 29 =
2. 2.15 × 19 =
3. 3.15 × 29 =
4. 4.7 × 99 =
5. 5.38 × 98 =
6. 6.9 × 49 =
7. 7.12 × 29 =
8. 8.5 × 49 =
9. 9.22 × 98 =
10. 10.11 × 29 =
11. 11.9 × 19 =
12. 12.36 × 99 =
13. 13.9 × 9 =
14. 14.10 × 29 =
15. 15.13 × 9 =
16. 16.9 × 99 =
17. 17.37 × 99 =
18. 18.13 × 19 =
19. 19.9 × 49 =
20. 20.3 × 49 =
21. 21.15 × 49 =
22. 22.9 × 29 =
23. 23.15 × 19 =
24. 24.12 × 98 =
25. 25.10 × 19 =
26. 26.4 × 19 =
27. 27.3 × 9 =
28. 28.29 × 98 =
29. 29.4 × 19 =
30. 30.15 × 9 =
31. 31.14 × 49 =
32. 32.15 × 9 =
33. 33.30 × 99 =
34. 34.23 × 99 =
35. 35.15 × 9 =
36. 36.10 × 29 =
37. 37.17 × 98 =
38. 38.35 × 98 =
39. 39.5 × 19 =
40. 40.10 × 19 =

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