Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 348 · 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. 1.3 × 9 =
2. 2.13 × 49 =
3. 3.3 × 9 =
4. 4.6 × 29 =
5. 5.31 × 99 =
6. 6.15 × 49 =
7. 7.13 × 9 =
8. 8.15 × 19 =
9. 9.5 × 29 =
10. 10.28 × 98 =
11. 11.15 × 9 =
12. 12.35 × 99 =
13. 13.29 × 98 =
14. 14.3 × 98 =
15. 15.10 × 49 =
16. 16.10 × 49 =
17. 17.9 × 19 =
18. 18.20 × 99 =
19. 19.15 × 49 =
20. 20.6 × 19 =
21. 21.11 × 49 =
22. 22.10 × 19 =
23. 23.6 × 9 =
24. 24.8 × 99 =
25. 25.5 × 49 =
26. 26.14 × 9 =
27. 27.13 × 19 =
28. 28.10 × 49 =
29. 29.4 × 9 =
30. 30.12 × 19 =
31. 31.33 × 98 =
32. 32.22 × 98 =
33. 33.3 × 29 =
34. 34.14 × 19 =
35. 35.10 × 49 =
36. 36.14 × 29 =
37. 37.14 × 49 =
38. 38.7 × 9 =
39. 39.14 × 49 =
40. 40.15 × 49 =

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