Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 382 · 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. 1.7 × 19 =
2. 2.6 × 9 =
3. 3.6 × 98 =
4. 4.12 × 29 =
5. 5.4 × 9 =
6. 6.31 × 98 =
7. 7.8 × 29 =
8. 8.39 × 98 =
9. 9.7 × 9 =
10. 10.30 × 99 =
11. 11.3 × 19 =
12. 12.17 × 98 =
13. 13.12 × 19 =
14. 14.3 × 19 =
15. 15.5 × 29 =
16. 16.15 × 98 =
17. 17.13 × 19 =
18. 18.10 × 49 =
19. 19.35 × 99 =
20. 20.12 × 19 =
21. 21.40 × 99 =
22. 22.19 × 98 =
23. 23.9 × 29 =
24. 24.20 × 99 =
25. 25.29 × 99 =
26. 26.7 × 29 =
27. 27.3 × 49 =
28. 28.14 × 9 =
29. 29.15 × 19 =
30. 30.37 × 98 =
31. 31.39 × 98 =
32. 32.9 × 19 =
33. 33.8 × 19 =
34. 34.8 × 29 =
35. 35.6 × 29 =
36. 36.4 × 29 =
37. 37.10 × 19 =
38. 38.7 × 19 =
39. 39.12 × 49 =
40. 40.6 × 29 =

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