Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 139 · 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. 1.36 × 99 =
2. 2.15 × 9 =
3. 3.38 × 99 =
4. 4.14 × 49 =
5. 5.9 × 29 =
6. 6.14 × 29 =
7. 7.6 × 19 =
8. 8.11 × 29 =
9. 9.13 × 19 =
10. 10.7 × 29 =
11. 11.7 × 99 =
12. 12.4 × 19 =
13. 13.9 × 19 =
14. 14.13 × 19 =
15. 15.3 × 9 =
16. 16.5 × 29 =
17. 17.29 × 98 =
18. 18.4 × 19 =
19. 19.4 × 99 =
20. 20.11 × 49 =
21. 21.4 × 9 =
22. 22.9 × 49 =
23. 23.9 × 49 =
24. 24.3 × 49 =
25. 25.5 × 49 =
26. 26.28 × 98 =
27. 27.3 × 29 =
28. 28.4 × 98 =
29. 29.5 × 29 =
30. 30.14 × 19 =
31. 31.7 × 19 =
32. 32.13 × 19 =
33. 33.5 × 9 =
34. 34.23 × 98 =
35. 35.5 × 19 =
36. 36.4 × 99 =
37. 37.13 × 19 =
38. 38.8 × 98 =
39. 39.30 × 98 =
40. 40.10 × 98 =

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