Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 302 · 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. 1.9 × 19 =
2. 2.3 × 29 =
3. 3.4 × 29 =
4. 4.12 × 9 =
5. 5.16 × 99 =
6. 6.8 × 29 =
7. 7.14 × 19 =
8. 8.3 × 99 =
9. 9.14 × 29 =
10. 10.6 × 99 =
11. 11.17 × 99 =
12. 12.29 × 98 =
13. 13.4 × 9 =
14. 14.31 × 99 =
15. 15.12 × 19 =
16. 16.39 × 98 =
17. 17.7 × 29 =
18. 18.13 × 29 =
19. 19.13 × 9 =
20. 20.7 × 9 =
21. 21.8 × 99 =
22. 22.32 × 99 =
23. 23.8 × 9 =
24. 24.9 × 29 =
25. 25.15 × 29 =
26. 26.6 × 98 =
27. 27.30 × 99 =
28. 28.7 × 9 =
29. 29.14 × 98 =
30. 30.15 × 29 =
31. 31.11 × 19 =
32. 32.19 × 98 =
33. 33.7 × 9 =
34. 34.4 × 19 =
35. 35.14 × 9 =
36. 36.7 × 9 =
37. 37.6 × 9 =
38. 38.11 × 9 =
39. 39.3 × 99 =
40. 40.7 × 49 =

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