Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 274 · 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 × 99 =
2. 2.38 × 99 =
3. 3.4 × 98 =
4. 4.18 × 98 =
5. 5.28 × 99 =
6. 6.15 × 19 =
7. 7.6 × 98 =
8. 8.23 × 99 =
9. 9.33 × 99 =
10. 10.9 × 19 =
11. 11.15 × 9 =
12. 12.13 × 49 =
13. 13.11 × 98 =
14. 14.10 × 19 =
15. 15.11 × 99 =
16. 16.10 × 19 =
17. 17.7 × 49 =
18. 18.12 × 49 =
19. 19.15 × 19 =
20. 20.10 × 9 =
21. 21.5 × 99 =
22. 22.6 × 29 =
23. 23.12 × 29 =
24. 24.29 × 99 =
25. 25.19 × 98 =
26. 26.7 × 29 =
27. 27.7 × 49 =
28. 28.4 × 9 =
29. 29.15 × 99 =
30. 30.9 × 29 =
31. 31.3 × 99 =
32. 32.12 × 9 =
33. 33.10 × 49 =
34. 34.4 × 9 =
35. 35.18 × 98 =
36. 36.9 × 98 =
37. 37.9 × 19 =
38. 38.32 × 99 =
39. 39.28 × 99 =
40. 40.3 × 19 =

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