Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 117 · 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. 1.31 × 99 =
2. 2.5 × 19 =
3. 3.3 × 19 =
4. 4.11 × 9 =
5. 5.7 × 49 =
6. 6.10 × 29 =
7. 7.13 × 9 =
8. 8.23 × 98 =
9. 9.13 × 19 =
10. 10.9 × 9 =
11. 11.17 × 99 =
12. 12.5 × 29 =
13. 13.28 × 99 =
14. 14.12 × 99 =
15. 15.7 × 9 =
16. 16.8 × 99 =
17. 17.9 × 19 =
18. 18.9 × 9 =
19. 19.10 × 29 =
20. 20.13 × 49 =
21. 21.10 × 49 =
22. 22.3 × 29 =
23. 23.9 × 9 =
24. 24.4 × 19 =
25. 25.28 × 98 =
26. 26.4 × 9 =
27. 27.29 × 99 =
28. 28.12 × 9 =
29. 29.11 × 99 =
30. 30.11 × 9 =
31. 31.8 × 29 =
32. 32.5 × 99 =
33. 33.21 × 98 =
34. 34.15 × 29 =
35. 35.11 × 49 =
36. 36.6 × 9 =
37. 37.12 × 19 =
38. 38.14 × 9 =
39. 39.10 × 19 =
40. 40.23 × 98 =

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