Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 856 · 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. 1.15 × 99 =
2. 2.5 × 19 =
3. 3.14 × 49 =
4. 4.8 × 19 =
5. 5.22 × 99 =
6. 6.21 × 99 =
7. 7.7 × 9 =
8. 8.6 × 9 =
9. 9.30 × 99 =
10. 10.9 × 99 =
11. 11.15 × 29 =
12. 12.10 × 98 =
13. 13.5 × 19 =
14. 14.3 × 99 =
15. 15.5 × 98 =
16. 16.9 × 9 =
17. 17.13 × 98 =
18. 18.5 × 98 =
19. 19.7 × 19 =
20. 20.5 × 49 =
21. 21.7 × 49 =
22. 22.9 × 98 =
23. 23.17 × 98 =
24. 24.25 × 99 =
25. 25.15 × 9 =
26. 26.8 × 99 =
27. 27.3 × 29 =
28. 28.4 × 9 =
29. 29.6 × 98 =
30. 30.12 × 99 =
31. 31.10 × 19 =
32. 32.10 × 29 =
33. 33.8 × 19 =
34. 34.5 × 49 =
35. 35.8 × 19 =
36. 36.12 × 9 =
37. 37.12 × 99 =
38. 38.15 × 98 =
39. 39.3 × 9 =
40. 40.18 × 98 =

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