Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 128 · 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 × 29 =
2. 2.9 × 29 =
3. 3.7 × 49 =
4. 4.5 × 99 =
5. 5.33 × 99 =
6. 6.10 × 29 =
7. 7.8 × 9 =
8. 8.13 × 29 =
9. 9.23 × 99 =
10. 10.26 × 99 =
11. 11.22 × 98 =
12. 12.8 × 19 =
13. 13.25 × 99 =
14. 14.5 × 19 =
15. 15.5 × 98 =
16. 16.30 × 98 =
17. 17.12 × 49 =
18. 18.7 × 19 =
19. 19.28 × 99 =
20. 20.31 × 99 =
21. 21.7 × 29 =
22. 22.5 × 99 =
23. 23.10 × 9 =
24. 24.15 × 29 =
25. 25.6 × 49 =
26. 26.6 × 99 =
27. 27.34 × 98 =
28. 28.8 × 19 =
29. 29.33 × 98 =
30. 30.5 × 29 =
31. 31.24 × 99 =
32. 32.26 × 98 =
33. 33.9 × 9 =
34. 34.9 × 98 =
35. 35.9 × 99 =
36. 36.27 × 99 =
37. 37.6 × 19 =
38. 38.3 × 29 =
39. 39.15 × 49 =
40. 40.6 × 9 =

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