Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 589 · 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. 1.5 × 99 =
2. 2.30 × 99 =
3. 3.10 × 99 =
4. 4.5 × 49 =
5. 5.9 × 9 =
6. 6.7 × 49 =
7. 7.4 × 9 =
8. 8.14 × 9 =
9. 9.31 × 98 =
10. 10.13 × 9 =
11. 11.10 × 49 =
12. 12.5 × 19 =
13. 13.4 × 19 =
14. 14.7 × 49 =
15. 15.10 × 9 =
16. 16.14 × 49 =
17. 17.5 × 29 =
18. 18.13 × 19 =
19. 19.32 × 99 =
20. 20.14 × 9 =
21. 21.5 × 19 =
22. 22.10 × 29 =
23. 23.27 × 98 =
24. 24.33 × 98 =
25. 25.5 × 9 =
26. 26.3 × 49 =
27. 27.7 × 99 =
28. 28.15 × 19 =
29. 29.7 × 19 =
30. 30.20 × 99 =
31. 31.32 × 98 =
32. 32.31 × 98 =
33. 33.12 × 19 =
34. 34.13 × 9 =
35. 35.13 × 19 =
36. 36.14 × 99 =
37. 37.20 × 98 =
38. 38.37 × 99 =
39. 39.4 × 9 =
40. 40.39 × 98 =

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