Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 29 · 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. 1.39 × 98 =
2. 2.13 × 9 =
3. 3.15 × 49 =
4. 4.8 × 99 =
5. 5.5 × 9 =
6. 6.9 × 9 =
7. 7.7 × 98 =
8. 8.13 × 49 =
9. 9.10 × 99 =
10. 10.22 × 99 =
11. 11.38 × 98 =
12. 12.7 × 29 =
13. 13.11 × 49 =
14. 14.6 × 29 =
15. 15.10 × 29 =
16. 16.7 × 99 =
17. 17.15 × 9 =
18. 18.15 × 98 =
19. 19.15 × 9 =
20. 20.7 × 49 =
21. 21.12 × 49 =
22. 22.15 × 9 =
23. 23.5 × 9 =
24. 24.5 × 9 =
25. 25.9 × 98 =
26. 26.3 × 49 =
27. 27.9 × 49 =
28. 28.3 × 9 =
29. 29.7 × 9 =
30. 30.5 × 98 =
31. 31.38 × 99 =
32. 32.10 × 9 =
33. 33.4 × 29 =
34. 34.6 × 9 =
35. 35.15 × 9 =
36. 36.32 × 99 =
37. 37.14 × 29 =
38. 38.30 × 99 =
39. 39.11 × 49 =
40. 40.11 × 29 =

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