Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 517 · 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 × 98 =
2. 2.39 × 99 =
3. 3.32 × 99 =
4. 4.3 × 19 =
5. 5.14 × 9 =
6. 6.6 × 19 =
7. 7.3 × 99 =
8. 8.7 × 19 =
9. 9.10 × 9 =
10. 10.9 × 19 =
11. 11.3 × 9 =
12. 12.12 × 98 =
13. 13.23 × 99 =
14. 14.16 × 99 =
15. 15.14 × 98 =
16. 16.15 × 49 =
17. 17.11 × 29 =
18. 18.10 × 19 =
19. 19.40 × 98 =
20. 20.15 × 9 =
21. 21.9 × 9 =
22. 22.14 × 9 =
23. 23.15 × 9 =
24. 24.23 × 99 =
25. 25.12 × 49 =
26. 26.20 × 98 =
27. 27.27 × 99 =
28. 28.7 × 49 =
29. 29.9 × 9 =
30. 30.14 × 19 =
31. 31.33 × 99 =
32. 32.13 × 9 =
33. 33.36 × 98 =
34. 34.14 × 99 =
35. 35.7 × 98 =
36. 36.38 × 99 =
37. 37.23 × 98 =
38. 38.12 × 9 =
39. 39.15 × 19 =
40. 40.3 × 49 =

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