Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 726 · 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. 1.4 × 49 =
2. 2.10 × 29 =
3. 3.28 × 99 =
4. 4.10 × 99 =
5. 5.35 × 99 =
6. 6.14 × 19 =
7. 7.4 × 9 =
8. 8.10 × 49 =
9. 9.28 × 98 =
10. 10.12 × 49 =
11. 11.12 × 99 =
12. 12.30 × 99 =
13. 13.11 × 19 =
14. 14.15 × 49 =
15. 15.12 × 29 =
16. 16.9 × 29 =
17. 17.6 × 49 =
18. 18.14 × 9 =
19. 19.15 × 29 =
20. 20.10 × 9 =
21. 21.7 × 99 =
22. 22.6 × 29 =
23. 23.20 × 98 =
24. 24.10 × 49 =
25. 25.29 × 99 =
26. 26.10 × 19 =
27. 27.6 × 19 =
28. 28.13 × 19 =
29. 29.6 × 19 =
30. 30.9 × 9 =
31. 31.13 × 29 =
32. 32.7 × 19 =
33. 33.6 × 19 =
34. 34.16 × 99 =
35. 35.12 × 19 =
36. 36.5 × 19 =
37. 37.14 × 9 =
38. 38.11 × 9 =
39. 39.10 × 9 =
40. 40.16 × 99 =

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