Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 948 · 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. 1.12 × 9 =
2. 2.3 × 29 =
3. 3.14 × 19 =
4. 4.13 × 19 =
5. 5.9 × 99 =
6. 6.15 × 49 =
7. 7.7 × 49 =
8. 8.12 × 9 =
9. 9.5 × 9 =
10. 10.10 × 29 =
11. 11.11 × 19 =
12. 12.8 × 29 =
13. 13.8 × 29 =
14. 14.38 × 98 =
15. 15.39 × 99 =
16. 16.40 × 99 =
17. 17.12 × 29 =
18. 18.3 × 19 =
19. 19.22 × 99 =
20. 20.36 × 98 =
21. 21.9 × 99 =
22. 22.7 × 29 =
23. 23.8 × 19 =
24. 24.19 × 99 =
25. 25.8 × 19 =
26. 26.24 × 99 =
27. 27.30 × 99 =
28. 28.6 × 19 =
29. 29.12 × 98 =
30. 30.5 × 9 =
31. 31.13 × 29 =
32. 32.31 × 99 =
33. 33.7 × 98 =
34. 34.27 × 98 =
35. 35.11 × 9 =
36. 36.8 × 19 =
37. 37.22 × 98 =
38. 38.4 × 19 =
39. 39.25 × 98 =
40. 40.8 × 99 =

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