Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 818 · 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. 1.39 × 98 =
2. 2.28 × 99 =
3. 3.5 × 98 =
4. 4.14 × 49 =
5. 5.5 × 19 =
6. 6.21 × 99 =
7. 7.10 × 98 =
8. 8.9 × 19 =
9. 9.24 × 98 =
10. 10.8 × 29 =
11. 11.36 × 99 =
12. 12.32 × 99 =
13. 13.11 × 29 =
14. 14.17 × 99 =
15. 15.6 × 19 =
16. 16.14 × 49 =
17. 17.8 × 19 =
18. 18.5 × 19 =
19. 19.13 × 49 =
20. 20.4 × 19 =
21. 21.6 × 19 =
22. 22.11 × 29 =
23. 23.9 × 49 =
24. 24.9 × 49 =
25. 25.34 × 99 =
26. 26.33 × 99 =
27. 27.8 × 29 =
28. 28.14 × 19 =
29. 29.11 × 9 =
30. 30.6 × 29 =
31. 31.5 × 19 =
32. 32.5 × 29 =
33. 33.5 × 29 =
34. 34.6 × 98 =
35. 35.14 × 29 =
36. 36.15 × 49 =
37. 37.17 × 98 =
38. 38.22 × 99 =
39. 39.19 × 98 =
40. 40.5 × 49 =

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