Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 161 · 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. 1.22 × 98 =
2. 2.7 × 49 =
3. 3.3 × 9 =
4. 4.40 × 98 =
5. 5.40 × 99 =
6. 6.6 × 99 =
7. 7.4 × 49 =
8. 8.29 × 98 =
9. 9.5 × 49 =
10. 10.36 × 99 =
11. 11.14 × 29 =
12. 12.14 × 29 =
13. 13.10 × 19 =
14. 14.12 × 98 =
15. 15.3 × 9 =
16. 16.3 × 9 =
17. 17.11 × 9 =
18. 18.4 × 19 =
19. 19.11 × 9 =
20. 20.8 × 19 =
21. 21.3 × 9 =
22. 22.6 × 99 =
23. 23.8 × 99 =
24. 24.35 × 99 =
25. 25.32 × 99 =
26. 26.6 × 9 =
27. 27.15 × 49 =
28. 28.15 × 19 =
29. 29.13 × 29 =
30. 30.13 × 98 =
31. 31.13 × 19 =
32. 32.33 × 99 =
33. 33.25 × 99 =
34. 34.36 × 99 =
35. 35.3 × 49 =
36. 36.35 × 99 =
37. 37.9 × 19 =
38. 38.16 × 98 =
39. 39.6 × 29 =
40. 40.10 × 19 =

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