Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 803 · 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. 1.34 × 98 =
2. 2.15 × 49 =
3. 3.16 × 99 =
4. 4.3 × 9 =
5. 5.8 × 99 =
6. 6.32 × 99 =
7. 7.30 × 98 =
8. 8.20 × 99 =
9. 9.37 × 99 =
10. 10.4 × 99 =
11. 11.16 × 99 =
12. 12.8 × 49 =
13. 13.10 × 49 =
14. 14.14 × 98 =
15. 15.7 × 49 =
16. 16.5 × 19 =
17. 17.30 × 99 =
18. 18.27 × 98 =
19. 19.6 × 9 =
20. 20.13 × 29 =
21. 21.32 × 99 =
22. 22.14 × 9 =
23. 23.12 × 9 =
24. 24.11 × 19 =
25. 25.10 × 98 =
26. 26.4 × 19 =
27. 27.31 × 98 =
28. 28.12 × 98 =
29. 29.5 × 29 =
30. 30.11 × 29 =
31. 31.8 × 9 =
32. 32.5 × 29 =
33. 33.11 × 9 =
34. 34.17 × 98 =
35. 35.15 × 29 =
36. 36.6 × 99 =
37. 37.22 × 99 =
38. 38.6 × 49 =
39. 39.15 × 9 =
40. 40.8 × 9 =

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