Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 39 · 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 × 29 =
3. 3.29 × 99 =
4. 4.8 × 98 =
5. 5.5 × 29 =
6. 6.5 × 19 =
7. 7.10 × 29 =
8. 8.19 × 99 =
9. 9.8 × 19 =
10. 10.5 × 19 =
11. 11.3 × 9 =
12. 12.16 × 98 =
13. 13.15 × 9 =
14. 14.5 × 29 =
15. 15.15 × 9 =
16. 16.12 × 49 =
17. 17.6 × 29 =
18. 18.5 × 19 =
19. 19.9 × 49 =
20. 20.15 × 9 =
21. 21.7 × 9 =
22. 22.12 × 19 =
23. 23.12 × 9 =
24. 24.14 × 29 =
25. 25.13 × 99 =
26. 26.18 × 98 =
27. 27.38 × 99 =
28. 28.11 × 29 =
29. 29.6 × 49 =
30. 30.10 × 98 =
31. 31.6 × 49 =
32. 32.12 × 49 =
33. 33.3 × 19 =
34. 34.7 × 19 =
35. 35.15 × 9 =
36. 36.33 × 98 =
37. 37.14 × 9 =
38. 38.38 × 99 =
39. 39.3 × 19 =
40. 40.3 × 49 =

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