Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 536 · 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 × 49 =
2. 2.35 × 98 =
3. 3.8 × 98 =
4. 4.7 × 99 =
5. 5.10 × 9 =
6. 6.10 × 99 =
7. 7.27 × 99 =
8. 8.9 × 49 =
9. 9.8 × 49 =
10. 10.7 × 9 =
11. 11.3 × 19 =
12. 12.11 × 99 =
13. 13.22 × 98 =
14. 14.13 × 49 =
15. 15.5 × 99 =
16. 16.21 × 98 =
17. 17.18 × 99 =
18. 18.13 × 19 =
19. 19.4 × 9 =
20. 20.13 × 9 =
21. 21.15 × 9 =
22. 22.4 × 99 =
23. 23.9 × 29 =
24. 24.17 × 99 =
25. 25.3 × 9 =
26. 26.12 × 19 =
27. 27.12 × 49 =
28. 28.5 × 29 =
29. 29.15 × 29 =
30. 30.18 × 99 =
31. 31.6 × 19 =
32. 32.8 × 19 =
33. 33.10 × 98 =
34. 34.15 × 19 =
35. 35.13 × 49 =
36. 36.7 × 49 =
37. 37.8 × 29 =
38. 38.14 × 29 =
39. 39.13 × 29 =
40. 40.13 × 19 =

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