Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 455 · 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. 1.13 × 99 =
2. 2.5 × 98 =
3. 3.4 × 29 =
4. 4.6 × 19 =
5. 5.37 × 99 =
6. 6.13 × 19 =
7. 7.8 × 19 =
8. 8.7 × 99 =
9. 9.4 × 49 =
10. 10.3 × 9 =
11. 11.13 × 29 =
12. 12.3 × 19 =
13. 13.4 × 99 =
14. 14.6 × 49 =
15. 15.3 × 29 =
16. 16.35 × 99 =
17. 17.3 × 29 =
18. 18.18 × 99 =
19. 19.3 × 29 =
20. 20.24 × 98 =
21. 21.14 × 29 =
22. 22.25 × 98 =
23. 23.11 × 98 =
24. 24.14 × 49 =
25. 25.9 × 19 =
26. 26.9 × 29 =
27. 27.11 × 98 =
28. 28.39 × 98 =
29. 29.20 × 99 =
30. 30.7 × 99 =
31. 31.13 × 29 =
32. 32.3 × 99 =
33. 33.30 × 99 =
34. 34.9 × 19 =
35. 35.5 × 19 =
36. 36.13 × 49 =
37. 37.38 × 99 =
38. 38.6 × 98 =
39. 39.4 × 9 =
40. 40.5 × 19 =

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