Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 564 · 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. 2.6 × 99 =
3. 3.10 × 29 =
4. 4.10 × 19 =
5. 5.5 × 19 =
6. 6.9 × 9 =
7. 7.12 × 98 =
8. 8.12 × 19 =
9. 9.13 × 19 =
10. 10.6 × 99 =
11. 11.12 × 19 =
12. 12.28 × 98 =
13. 13.4 × 49 =
14. 14.13 × 19 =
15. 15.30 × 99 =
16. 16.16 × 99 =
17. 17.40 × 99 =
18. 18.23 × 98 =
19. 19.7 × 19 =
20. 20.15 × 9 =
21. 21.5 × 19 =
22. 22.15 × 19 =
23. 23.9 × 98 =
24. 24.13 × 9 =
25. 25.5 × 29 =
26. 26.3 × 99 =
27. 27.17 × 99 =
28. 28.15 × 49 =
29. 29.7 × 49 =
30. 30.8 × 9 =
31. 31.9 × 9 =
32. 32.10 × 99 =
33. 33.8 × 98 =
34. 34.12 × 49 =
35. 35.6 × 49 =
36. 36.12 × 49 =
37. 37.9 × 49 =
38. 38.4 × 9 =
39. 39.4 × 29 =
40. 40.3 × 99 =

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