Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 596 · 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 × 99 =
2. 2.4 × 98 =
3. 3.13 × 9 =
4. 4.9 × 9 =
5. 5.6 × 49 =
6. 6.36 × 99 =
7. 7.11 × 29 =
8. 8.15 × 9 =
9. 9.9 × 99 =
10. 10.8 × 19 =
11. 11.11 × 9 =
12. 12.11 × 9 =
13. 13.9 × 29 =
14. 14.4 × 49 =
15. 15.38 × 99 =
16. 16.15 × 99 =
17. 17.3 × 19 =
18. 18.7 × 98 =
19. 19.12 × 9 =
20. 20.8 × 19 =
21. 21.25 × 99 =
22. 22.8 × 49 =
23. 23.9 × 49 =
24. 24.5 × 98 =
25. 25.9 × 9 =
26. 26.16 × 99 =
27. 27.10 × 99 =
28. 28.34 × 99 =
29. 29.10 × 19 =
30. 30.3 × 19 =
31. 31.5 × 9 =
32. 32.15 × 98 =
33. 33.15 × 29 =
34. 34.26 × 99 =
35. 35.10 × 49 =
36. 36.40 × 99 =
37. 37.28 × 99 =
38. 38.7 × 9 =
39. 39.3 × 98 =
40. 40.4 × 9 =

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