Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 144 · 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. 1.6 × 19 =
2. 2.5 × 9 =
3. 3.7 × 98 =
4. 4.12 × 19 =
5. 5.14 × 9 =
6. 6.38 × 99 =
7. 7.29 × 99 =
8. 8.10 × 19 =
9. 9.10 × 29 =
10. 10.7 × 49 =
11. 11.11 × 9 =
12. 12.5 × 29 =
13. 13.4 × 98 =
14. 14.10 × 98 =
15. 15.12 × 29 =
16. 16.12 × 19 =
17. 17.4 × 49 =
18. 18.13 × 19 =
19. 19.21 × 98 =
20. 20.10 × 49 =
21. 21.16 × 99 =
22. 22.5 × 99 =
23. 23.3 × 29 =
24. 24.10 × 19 =
25. 25.3 × 29 =
26. 26.15 × 49 =
27. 27.20 × 99 =
28. 28.6 × 19 =
29. 29.6 × 9 =
30. 30.17 × 99 =
31. 31.30 × 98 =
32. 32.5 × 49 =
33. 33.20 × 99 =
34. 34.9 × 99 =
35. 35.14 × 49 =
36. 36.8 × 49 =
37. 37.11 × 19 =
38. 38.37 × 98 =
39. 39.12 × 29 =
40. 40.5 × 49 =

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