Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 683 · 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. 1.23 × 98 =
2. 2.8 × 49 =
3. 3.26 × 99 =
4. 4.8 × 98 =
5. 5.15 × 99 =
6. 6.20 × 99 =
7. 7.5 × 19 =
8. 8.4 × 9 =
9. 9.9 × 49 =
10. 10.14 × 49 =
11. 11.6 × 99 =
12. 12.24 × 99 =
13. 13.5 × 9 =
14. 14.12 × 29 =
15. 15.11 × 19 =
16. 16.10 × 49 =
17. 17.7 × 29 =
18. 18.5 × 99 =
19. 19.33 × 98 =
20. 20.3 × 9 =
21. 21.5 × 49 =
22. 22.5 × 29 =
23. 23.3 × 9 =
24. 24.6 × 49 =
25. 25.30 × 98 =
26. 26.7 × 49 =
27. 27.11 × 98 =
28. 28.6 × 29 =
29. 29.13 × 49 =
30. 30.8 × 99 =
31. 31.8 × 98 =
32. 32.13 × 9 =
33. 33.14 × 19 =
34. 34.3 × 9 =
35. 35.29 × 98 =
36. 36.3 × 9 =
37. 37.25 × 99 =
38. 38.9 × 19 =
39. 39.5 × 49 =
40. 40.10 × 49 =

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