Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 591 · 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. 1.9 × 49 =
2. 2.29 × 99 =
3. 3.37 × 98 =
4. 4.12 × 49 =
5. 5.11 × 9 =
6. 6.9 × 19 =
7. 7.15 × 98 =
8. 8.5 × 19 =
9. 9.26 × 98 =
10. 10.11 × 29 =
11. 11.25 × 99 =
12. 12.3 × 9 =
13. 13.13 × 99 =
14. 14.9 × 49 =
15. 15.8 × 9 =
16. 16.37 × 98 =
17. 17.35 × 99 =
18. 18.3 × 19 =
19. 19.5 × 29 =
20. 20.10 × 99 =
21. 21.39 × 98 =
22. 22.29 × 98 =
23. 23.5 × 9 =
24. 24.38 × 98 =
25. 25.38 × 99 =
26. 26.3 × 29 =
27. 27.24 × 99 =
28. 28.7 × 49 =
29. 29.7 × 29 =
30. 30.10 × 19 =
31. 31.18 × 99 =
32. 32.10 × 9 =
33. 33.21 × 98 =
34. 34.27 × 98 =
35. 35.14 × 29 =
36. 36.7 × 29 =
37. 37.7 × 49 =
38. 38.6 × 29 =
39. 39.11 × 19 =
40. 40.7 × 9 =

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