Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 819 · 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. 1.39 × 98 =
2. 2.7 × 49 =
3. 3.15 × 29 =
4. 4.15 × 19 =
5. 5.9 × 29 =
6. 6.10 × 19 =
7. 7.15 × 19 =
8. 8.6 × 19 =
9. 9.3 × 9 =
10. 10.8 × 19 =
11. 11.14 × 19 =
12. 12.4 × 49 =
13. 13.15 × 99 =
14. 14.28 × 99 =
15. 15.35 × 99 =
16. 16.3 × 98 =
17. 17.14 × 49 =
18. 18.5 × 9 =
19. 19.25 × 99 =
20. 20.8 × 99 =
21. 21.23 × 99 =
22. 22.7 × 29 =
23. 23.8 × 49 =
24. 24.14 × 29 =
25. 25.5 × 49 =
26. 26.9 × 29 =
27. 27.37 × 99 =
28. 28.31 × 98 =
29. 29.9 × 98 =
30. 30.6 × 19 =
31. 31.5 × 99 =
32. 32.7 × 9 =
33. 33.10 × 29 =
34. 34.14 × 19 =
35. 35.28 × 98 =
36. 36.27 × 99 =
37. 37.11 × 9 =
38. 38.13 × 29 =
39. 39.4 × 9 =
40. 40.5 × 19 =

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