Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 594 · 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 × 19 =
2. 2.10 × 98 =
3. 3.15 × 49 =
4. 4.14 × 99 =
5. 5.3 × 29 =
6. 6.11 × 49 =
7. 7.15 × 99 =
8. 8.12 × 19 =
9. 9.12 × 99 =
10. 10.13 × 99 =
11. 11.12 × 99 =
12. 12.11 × 29 =
13. 13.5 × 9 =
14. 14.4 × 9 =
15. 15.39 × 98 =
16. 16.31 × 98 =
17. 17.29 × 98 =
18. 18.3 × 29 =
19. 19.13 × 9 =
20. 20.30 × 98 =
21. 21.11 × 49 =
22. 22.9 × 49 =
23. 23.11 × 9 =
24. 24.12 × 9 =
25. 25.7 × 98 =
26. 26.34 × 99 =
27. 27.10 × 19 =
28. 28.5 × 49 =
29. 29.7 × 19 =
30. 30.3 × 98 =
31. 31.5 × 49 =
32. 32.34 × 99 =
33. 33.5 × 9 =
34. 34.11 × 9 =
35. 35.3 × 99 =
36. 36.15 × 9 =
37. 37.13 × 9 =
38. 38.6 × 49 =
39. 39.9 × 29 =
40. 40.10 × 29 =

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