Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 761 · 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. 1.8 × 49 =
2. 2.13 × 9 =
3. 3.3 × 19 =
4. 4.3 × 29 =
5. 5.17 × 99 =
6. 6.15 × 19 =
7. 7.8 × 19 =
8. 8.7 × 29 =
9. 9.4 × 9 =
10. 10.22 × 99 =
11. 11.9 × 29 =
12. 12.7 × 29 =
13. 13.7 × 19 =
14. 14.12 × 29 =
15. 15.6 × 9 =
16. 16.10 × 29 =
17. 17.7 × 9 =
18. 18.3 × 98 =
19. 19.8 × 29 =
20. 20.4 × 19 =
21. 21.7 × 99 =
22. 22.35 × 98 =
23. 23.15 × 19 =
24. 24.30 × 98 =
25. 25.6 × 29 =
26. 26.33 × 99 =
27. 27.7 × 9 =
28. 28.39 × 98 =
29. 29.8 × 19 =
30. 30.3 × 98 =
31. 31.34 × 98 =
32. 32.3 × 29 =
33. 33.14 × 9 =
34. 34.34 × 98 =
35. 35.22 × 99 =
36. 36.12 × 19 =
37. 37.9 × 19 =
38. 38.34 × 98 =
39. 39.11 × 9 =
40. 40.39 × 99 =

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