Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 577 · 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 × 29 =
2. 2.30 × 99 =
3. 3.3 × 98 =
4. 4.9 × 49 =
5. 5.11 × 29 =
6. 6.36 × 99 =
7. 7.37 × 98 =
8. 8.7 × 9 =
9. 9.14 × 49 =
10. 10.7 × 49 =
11. 11.4 × 98 =
12. 12.29 × 99 =
13. 13.5 × 9 =
14. 14.37 × 98 =
15. 15.5 × 9 =
16. 16.4 × 9 =
17. 17.16 × 99 =
18. 18.18 × 99 =
19. 19.39 × 98 =
20. 20.10 × 19 =
21. 21.14 × 19 =
22. 22.29 × 99 =
23. 23.39 × 99 =
24. 24.36 × 98 =
25. 25.9 × 9 =
26. 26.28 × 99 =
27. 27.9 × 19 =
28. 28.4 × 19 =
29. 29.23 × 98 =
30. 30.11 × 98 =
31. 31.34 × 99 =
32. 32.8 × 9 =
33. 33.5 × 29 =
34. 34.9 × 9 =
35. 35.7 × 98 =
36. 36.11 × 99 =
37. 37.12 × 19 =
38. 38.3 × 98 =
39. 39.7 × 98 =
40. 40.5 × 49 =

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