Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 284 · 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. 1.3 × 29 =
2. 2.10 × 49 =
3. 3.10 × 98 =
4. 4.35 × 98 =
5. 5.7 × 19 =
6. 6.9 × 9 =
7. 7.13 × 49 =
8. 8.17 × 99 =
9. 9.3 × 19 =
10. 10.4 × 9 =
11. 11.6 × 19 =
12. 12.14 × 29 =
13. 13.13 × 19 =
14. 14.5 × 49 =
15. 15.15 × 49 =
16. 16.9 × 49 =
17. 17.13 × 19 =
18. 18.4 × 9 =
19. 19.13 × 19 =
20. 20.11 × 9 =
21. 21.12 × 9 =
22. 22.7 × 29 =
23. 23.4 × 49 =
24. 24.36 × 98 =
25. 25.4 × 9 =
26. 26.9 × 49 =
27. 27.10 × 19 =
28. 28.4 × 29 =
29. 29.11 × 29 =
30. 30.10 × 19 =
31. 31.15 × 9 =
32. 32.14 × 99 =
33. 33.7 × 98 =
34. 34.14 × 19 =
35. 35.39 × 98 =
36. 36.5 × 19 =
37. 37.9 × 49 =
38. 38.29 × 98 =
39. 39.12 × 19 =
40. 40.19 × 99 =

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