Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 738 · 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. 2.8 × 29 =
3. 3.3 × 19 =
4. 4.15 × 19 =
5. 5.4 × 29 =
6. 6.6 × 49 =
7. 7.6 × 19 =
8. 8.3 × 9 =
9. 9.10 × 19 =
10. 10.10 × 19 =
11. 11.37 × 98 =
12. 12.3 × 19 =
13. 13.6 × 49 =
14. 14.15 × 49 =
15. 15.3 × 19 =
16. 16.10 × 19 =
17. 17.39 × 99 =
18. 18.14 × 19 =
19. 19.15 × 9 =
20. 20.10 × 9 =
21. 21.11 × 49 =
22. 22.14 × 29 =
23. 23.3 × 9 =
24. 24.14 × 49 =
25. 25.32 × 98 =
26. 26.10 × 19 =
27. 27.31 × 98 =
28. 28.5 × 9 =
29. 29.14 × 49 =
30. 30.31 × 99 =
31. 31.14 × 29 =
32. 32.4 × 49 =
33. 33.9 × 99 =
34. 34.12 × 99 =
35. 35.38 × 99 =
36. 36.5 × 29 =
37. 37.5 × 9 =
38. 38.3 × 19 =
39. 39.11 × 9 =
40. 40.7 × 98 =

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