Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 927 · 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. 1.39 × 99 =
2. 2.8 × 49 =
3. 3.7 × 19 =
4. 4.34 × 99 =
5. 5.3 × 19 =
6. 6.31 × 99 =
7. 7.11 × 98 =
8. 8.12 × 9 =
9. 9.15 × 29 =
10. 10.6 × 9 =
11. 11.3 × 99 =
12. 12.3 × 19 =
13. 13.10 × 29 =
14. 14.14 × 9 =
15. 15.9 × 19 =
16. 16.8 × 29 =
17. 17.9 × 49 =
18. 18.10 × 49 =
19. 19.7 × 9 =
20. 20.7 × 49 =
21. 21.4 × 9 =
22. 22.15 × 49 =
23. 23.15 × 9 =
24. 24.13 × 29 =
25. 25.29 × 98 =
26. 26.10 × 98 =
27. 27.7 × 99 =
28. 28.13 × 9 =
29. 29.6 × 49 =
30. 30.19 × 98 =
31. 31.9 × 29 =
32. 32.3 × 29 =
33. 33.15 × 99 =
34. 34.14 × 98 =
35. 35.12 × 19 =
36. 36.13 × 9 =
37. 37.11 × 49 =
38. 38.14 × 49 =
39. 39.15 × 49 =
40. 40.22 × 98 =

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