Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 141 · 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. 1.35 × 99 =
2. 2.8 × 98 =
3. 3.5 × 19 =
4. 4.10 × 19 =
5. 5.11 × 99 =
6. 6.14 × 29 =
7. 7.7 × 49 =
8. 8.7 × 49 =
9. 9.7 × 29 =
10. 10.8 × 29 =
11. 11.14 × 9 =
12. 12.6 × 19 =
13. 13.10 × 19 =
14. 14.6 × 49 =
15. 15.8 × 9 =
16. 16.32 × 99 =
17. 17.9 × 29 =
18. 18.4 × 29 =
19. 19.13 × 29 =
20. 20.33 × 99 =
21. 21.7 × 99 =
22. 22.7 × 29 =
23. 23.3 × 19 =
24. 24.8 × 98 =
25. 25.10 × 99 =
26. 26.11 × 9 =
27. 27.9 × 29 =
28. 28.5 × 99 =
29. 29.3 × 19 =
30. 30.10 × 29 =
31. 31.4 × 9 =
32. 32.14 × 9 =
33. 33.9 × 9 =
34. 34.7 × 29 =
35. 35.15 × 9 =
36. 36.11 × 9 =
37. 37.40 × 99 =
38. 38.8 × 29 =
39. 39.19 × 99 =
40. 40.17 × 98 =

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