Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 108 · 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 × 49 =
2. 2.13 × 49 =
3. 3.8 × 99 =
4. 4.11 × 19 =
5. 5.3 × 49 =
6. 6.21 × 99 =
7. 7.6 × 29 =
8. 8.11 × 9 =
9. 9.11 × 9 =
10. 10.31 × 99 =
11. 11.10 × 29 =
12. 12.8 × 49 =
13. 13.3 × 49 =
14. 14.3 × 49 =
15. 15.7 × 9 =
16. 16.4 × 19 =
17. 17.5 × 98 =
18. 18.11 × 98 =
19. 19.5 × 19 =
20. 20.32 × 98 =
21. 21.5 × 98 =
22. 22.5 × 19 =
23. 23.6 × 29 =
24. 24.6 × 9 =
25. 25.23 × 99 =
26. 26.3 × 29 =
27. 27.5 × 49 =
28. 28.12 × 19 =
29. 29.7 × 99 =
30. 30.7 × 98 =
31. 31.7 × 19 =
32. 32.10 × 99 =
33. 33.7 × 49 =
34. 34.4 × 9 =
35. 35.39 × 99 =
36. 36.12 × 19 =
37. 37.22 × 99 =
38. 38.14 × 19 =
39. 39.20 × 99 =
40. 40.7 × 29 =

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