Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 505 · 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. 1.12 × 9 =
2. 2.7 × 9 =
3. 3.22 × 99 =
4. 4.5 × 29 =
5. 5.6 × 99 =
6. 6.14 × 19 =
7. 7.17 × 99 =
8. 8.12 × 49 =
9. 9.13 × 9 =
10. 10.12 × 9 =
11. 11.15 × 9 =
12. 12.15 × 99 =
13. 13.10 × 19 =
14. 14.9 × 9 =
15. 15.8 × 29 =
16. 16.35 × 99 =
17. 17.15 × 19 =
18. 18.8 × 98 =
19. 19.5 × 49 =
20. 20.11 × 19 =
21. 21.13 × 19 =
22. 22.3 × 98 =
23. 23.9 × 49 =
24. 24.14 × 99 =
25. 25.10 × 9 =
26. 26.6 × 9 =
27. 27.9 × 49 =
28. 28.10 × 9 =
29. 29.4 × 9 =
30. 30.12 × 99 =
31. 31.12 × 29 =
32. 32.10 × 19 =
33. 33.13 × 49 =
34. 34.5 × 49 =
35. 35.14 × 49 =
36. 36.17 × 99 =
37. 37.7 × 49 =
38. 38.3 × 99 =
39. 39.34 × 98 =
40. 40.7 × 19 =

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