Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 267 · 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. 2.12 × 29 =
3. 3.9 × 19 =
4. 4.18 × 98 =
5. 5.8 × 9 =
6. 6.15 × 98 =
7. 7.7 × 29 =
8. 8.15 × 19 =
9. 9.11 × 9 =
10. 10.15 × 9 =
11. 11.14 × 99 =
12. 12.11 × 99 =
13. 13.29 × 98 =
14. 14.6 × 98 =
15. 15.13 × 29 =
16. 16.27 × 99 =
17. 17.12 × 19 =
18. 18.11 × 49 =
19. 19.15 × 49 =
20. 20.13 × 49 =
21. 21.14 × 98 =
22. 22.5 × 98 =
23. 23.8 × 9 =
24. 24.3 × 98 =
25. 25.27 × 98 =
26. 26.14 × 19 =
27. 27.3 × 9 =
28. 28.20 × 99 =
29. 29.9 × 19 =
30. 30.18 × 99 =
31. 31.4 × 19 =
32. 32.12 × 49 =
33. 33.10 × 19 =
34. 34.39 × 99 =
35. 35.7 × 98 =
36. 36.32 × 99 =
37. 37.5 × 9 =
38. 38.32 × 98 =
39. 39.3 × 49 =
40. 40.3 × 99 =

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