Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 581 · 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. 1.24 × 99 =
2. 2.39 × 99 =
3. 3.34 × 99 =
4. 4.7 × 29 =
5. 5.18 × 98 =
6. 6.13 × 98 =
7. 7.23 × 99 =
8. 8.31 × 98 =
9. 9.29 × 99 =
10. 10.9 × 98 =
11. 11.4 × 29 =
12. 12.3 × 99 =
13. 13.15 × 19 =
14. 14.8 × 29 =
15. 15.35 × 99 =
16. 16.8 × 19 =
17. 17.15 × 9 =
18. 18.20 × 99 =
19. 19.4 × 9 =
20. 20.40 × 98 =
21. 21.4 × 99 =
22. 22.11 × 29 =
23. 23.7 × 9 =
24. 24.28 × 99 =
25. 25.3 × 19 =
26. 26.10 × 99 =
27. 27.9 × 29 =
28. 28.12 × 98 =
29. 29.3 × 98 =
30. 30.27 × 98 =
31. 31.25 × 98 =
32. 32.38 × 99 =
33. 33.9 × 29 =
34. 34.7 × 49 =
35. 35.10 × 19 =
36. 36.8 × 49 =
37. 37.10 × 49 =
38. 38.6 × 9 =
39. 39.14 × 19 =
40. 40.14 × 49 =

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