Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 116 · 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. 1.11 × 99 =
2. 2.11 × 99 =
3. 3.5 × 19 =
4. 4.7 × 19 =
5. 5.9 × 49 =
6. 6.5 × 49 =
7. 7.19 × 98 =
8. 8.16 × 99 =
9. 9.24 × 98 =
10. 10.12 × 19 =
11. 11.11 × 9 =
12. 12.28 × 98 =
13. 13.25 × 99 =
14. 14.12 × 9 =
15. 15.6 × 19 =
16. 16.7 × 19 =
17. 17.12 × 19 =
18. 18.39 × 98 =
19. 19.15 × 29 =
20. 20.14 × 99 =
21. 21.11 × 9 =
22. 22.6 × 9 =
23. 23.16 × 99 =
24. 24.11 × 49 =
25. 25.9 × 9 =
26. 26.13 × 98 =
27. 27.13 × 9 =
28. 28.6 × 29 =
29. 29.7 × 49 =
30. 30.11 × 9 =
31. 31.4 × 9 =
32. 32.5 × 49 =
33. 33.8 × 29 =
34. 34.27 × 98 =
35. 35.29 × 99 =
36. 36.9 × 98 =
37. 37.14 × 19 =
38. 38.33 × 98 =
39. 39.37 × 99 =
40. 40.34 × 99 =

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