Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 721 · 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 × 49 =
2. 2.6 × 49 =
3. 3.17 × 99 =
4. 4.8 × 49 =
5. 5.11 × 29 =
6. 6.14 × 49 =
7. 7.5 × 49 =
8. 8.7 × 29 =
9. 9.15 × 19 =
10. 10.15 × 19 =
11. 11.15 × 19 =
12. 12.6 × 19 =
13. 13.19 × 99 =
14. 14.6 × 29 =
15. 15.22 × 99 =
16. 16.5 × 19 =
17. 17.3 × 49 =
18. 18.7 × 29 =
19. 19.13 × 49 =
20. 20.4 × 49 =
21. 21.4 × 49 =
22. 22.12 × 29 =
23. 23.5 × 29 =
24. 24.31 × 99 =
25. 25.36 × 99 =
26. 26.35 × 99 =
27. 27.9 × 98 =
28. 28.8 × 98 =
29. 29.8 × 19 =
30. 30.9 × 19 =
31. 31.11 × 9 =
32. 32.9 × 49 =
33. 33.9 × 19 =
34. 34.6 × 29 =
35. 35.4 × 98 =
36. 36.6 × 19 =
37. 37.22 × 99 =
38. 38.5 × 99 =
39. 39.12 × 9 =
40. 40.14 × 19 =

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