Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 102 · 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. 1.12 × 49 =
2. 2.12 × 99 =
3. 3.14 × 29 =
4. 4.15 × 49 =
5. 5.34 × 99 =
6. 6.7 × 98 =
7. 7.10 × 9 =
8. 8.25 × 99 =
9. 9.30 × 99 =
10. 10.11 × 29 =
11. 11.14 × 29 =
12. 12.37 × 99 =
13. 13.27 × 98 =
14. 14.9 × 49 =
15. 15.15 × 29 =
16. 16.8 × 29 =
17. 17.13 × 9 =
18. 18.15 × 19 =
19. 19.34 × 98 =
20. 20.4 × 19 =
21. 21.14 × 49 =
22. 22.10 × 29 =
23. 23.12 × 9 =
24. 24.13 × 49 =
25. 25.8 × 49 =
26. 26.8 × 49 =
27. 27.9 × 29 =
28. 28.10 × 49 =
29. 29.5 × 9 =
30. 30.13 × 19 =
31. 31.4 × 9 =
32. 32.23 × 98 =
33. 33.8 × 49 =
34. 34.8 × 98 =
35. 35.34 × 98 =
36. 36.19 × 99 =
37. 37.4 × 29 =
38. 38.8 × 9 =
39. 39.32 × 98 =
40. 40.9 × 98 =

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