Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 509 · 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. 1.23 × 98 =
2. 2.39 × 98 =
3. 3.12 × 9 =
4. 4.38 × 99 =
5. 5.37 × 98 =
6. 6.6 × 49 =
7. 7.10 × 29 =
8. 8.12 × 19 =
9. 9.12 × 19 =
10. 10.27 × 98 =
11. 11.9 × 49 =
12. 12.6 × 49 =
13. 13.29 × 98 =
14. 14.3 × 29 =
15. 15.3 × 29 =
16. 16.6 × 19 =
17. 17.10 × 19 =
18. 18.13 × 98 =
19. 19.4 × 9 =
20. 20.9 × 49 =
21. 21.8 × 98 =
22. 22.5 × 29 =
23. 23.10 × 9 =
24. 24.10 × 19 =
25. 25.13 × 49 =
26. 26.25 × 98 =
27. 27.4 × 49 =
28. 28.34 × 98 =
29. 29.21 × 98 =
30. 30.9 × 29 =
31. 31.10 × 19 =
32. 32.5 × 19 =
33. 33.10 × 29 =
34. 34.22 × 99 =
35. 35.8 × 29 =
36. 36.4 × 49 =
37. 37.4 × 19 =
38. 38.12 × 19 =
39. 39.6 × 49 =
40. 40.14 × 99 =

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