Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 613 · 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. 1.7 × 99 =
2. 2.13 × 9 =
3. 3.8 × 99 =
4. 4.3 × 9 =
5. 5.10 × 29 =
6. 6.3 × 9 =
7. 7.12 × 49 =
8. 8.9 × 9 =
9. 9.29 × 98 =
10. 10.11 × 9 =
11. 11.14 × 29 =
12. 12.3 × 49 =
13. 13.11 × 49 =
14. 14.5 × 19 =
15. 15.5 × 98 =
16. 16.9 × 19 =
17. 17.32 × 99 =
18. 18.6 × 9 =
19. 19.7 × 29 =
20. 20.7 × 19 =
21. 21.3 × 49 =
22. 22.20 × 99 =
23. 23.15 × 49 =
24. 24.6 × 49 =
25. 25.11 × 9 =
26. 26.10 × 29 =
27. 27.12 × 99 =
28. 28.11 × 49 =
29. 29.9 × 49 =
30. 30.36 × 98 =
31. 31.14 × 98 =
32. 32.15 × 9 =
33. 33.8 × 29 =
34. 34.7 × 9 =
35. 35.11 × 49 =
36. 36.13 × 19 =
37. 37.9 × 99 =
38. 38.15 × 29 =
39. 39.8 × 19 =
40. 40.11 × 49 =

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