Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 162 · 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. 1.21 × 98 =
2. 2.3 × 29 =
3. 3.20 × 99 =
4. 4.14 × 29 =
5. 5.5 × 9 =
6. 6.13 × 29 =
7. 7.33 × 98 =
8. 8.5 × 49 =
9. 9.11 × 9 =
10. 10.6 × 19 =
11. 11.14 × 19 =
12. 12.10 × 29 =
13. 13.8 × 98 =
14. 14.13 × 9 =
15. 15.15 × 49 =
16. 16.13 × 99 =
17. 17.9 × 9 =
18. 18.9 × 9 =
19. 19.6 × 9 =
20. 20.11 × 19 =
21. 21.31 × 98 =
22. 22.37 × 99 =
23. 23.20 × 99 =
24. 24.14 × 99 =
25. 25.15 × 19 =
26. 26.12 × 19 =
27. 27.7 × 49 =
28. 28.14 × 9 =
29. 29.6 × 9 =
30. 30.6 × 19 =
31. 31.3 × 19 =
32. 32.15 × 9 =
33. 33.15 × 49 =
34. 34.15 × 49 =
35. 35.33 × 99 =
36. 36.14 × 19 =
37. 37.8 × 29 =
38. 38.11 × 9 =
39. 39.3 × 98 =
40. 40.3 × 19 =

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