Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 254 · 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. 1.10 × 49 =
2. 2.11 × 19 =
3. 3.5 × 49 =
4. 4.3 × 9 =
5. 5.9 × 49 =
6. 6.5 × 49 =
7. 7.11 × 49 =
8. 8.14 × 19 =
9. 9.3 × 98 =
10. 10.12 × 29 =
11. 11.8 × 49 =
12. 12.12 × 29 =
13. 13.14 × 99 =
14. 14.4 × 9 =
15. 15.7 × 99 =
16. 16.14 × 19 =
17. 17.15 × 19 =
18. 18.7 × 9 =
19. 19.11 × 9 =
20. 20.12 × 99 =
21. 21.15 × 9 =
22. 22.24 × 99 =
23. 23.12 × 49 =
24. 24.8 × 49 =
25. 25.34 × 99 =
26. 26.3 × 9 =
27. 27.9 × 49 =
28. 28.7 × 29 =
29. 29.4 × 19 =
30. 30.4 × 9 =
31. 31.8 × 29 =
32. 32.7 × 29 =
33. 33.13 × 19 =
34. 34.17 × 99 =
35. 35.31 × 98 =
36. 36.15 × 29 =
37. 37.5 × 19 =
38. 38.8 × 9 =
39. 39.16 × 98 =
40. 40.14 × 29 =

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