Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 939 · 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. 1.10 × 9 =
2. 2.9 × 9 =
3. 3.3 × 98 =
4. 4.12 × 19 =
5. 5.13 × 98 =
6. 6.5 × 98 =
7. 7.13 × 29 =
8. 8.37 × 99 =
9. 9.29 × 99 =
10. 10.10 × 9 =
11. 11.7 × 49 =
12. 12.3 × 99 =
13. 13.9 × 9 =
14. 14.20 × 98 =
15. 15.14 × 29 =
16. 16.8 × 19 =
17. 17.21 × 99 =
18. 18.3 × 19 =
19. 19.9 × 19 =
20. 20.14 × 29 =
21. 21.13 × 9 =
22. 22.10 × 29 =
23. 23.14 × 9 =
24. 24.4 × 9 =
25. 25.17 × 98 =
26. 26.5 × 49 =
27. 27.7 × 29 =
28. 28.10 × 19 =
29. 29.9 × 9 =
30. 30.12 × 29 =
31. 31.11 × 9 =
32. 32.6 × 9 =
33. 33.24 × 99 =
34. 34.8 × 9 =
35. 35.12 × 19 =
36. 36.6 × 19 =
37. 37.5 × 49 =
38. 38.5 × 99 =
39. 39.15 × 9 =
40. 40.6 × 98 =

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