Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 457 · 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. 1.32 × 99 =
2. 2.15 × 9 =
3. 3.4 × 29 =
4. 4.13 × 99 =
5. 5.10 × 98 =
6. 6.10 × 29 =
7. 7.6 × 49 =
8. 8.8 × 98 =
9. 9.14 × 19 =
10. 10.13 × 19 =
11. 11.9 × 9 =
12. 12.14 × 19 =
13. 13.9 × 19 =
14. 14.12 × 29 =
15. 15.13 × 9 =
16. 16.14 × 49 =
17. 17.13 × 29 =
18. 18.8 × 29 =
19. 19.4 × 98 =
20. 20.34 × 99 =
21. 21.12 × 99 =
22. 22.8 × 9 =
23. 23.10 × 49 =
24. 24.11 × 9 =
25. 25.4 × 29 =
26. 26.8 × 49 =
27. 27.8 × 9 =
28. 28.12 × 49 =
29. 29.11 × 9 =
30. 30.6 × 9 =
31. 31.4 × 9 =
32. 32.4 × 29 =
33. 33.39 × 98 =
34. 34.26 × 98 =
35. 35.12 × 29 =
36. 36.39 × 98 =
37. 37.6 × 29 =
38. 38.14 × 9 =
39. 39.11 × 98 =
40. 40.13 × 9 =

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