Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 419 · 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. 1.9 × 49 =
2. 2.5 × 19 =
3. 3.11 × 9 =
4. 4.8 × 98 =
5. 5.14 × 49 =
6. 6.6 × 98 =
7. 7.13 × 19 =
8. 8.16 × 98 =
9. 9.5 × 29 =
10. 10.8 × 9 =
11. 11.6 × 9 =
12. 12.9 × 98 =
13. 13.12 × 29 =
14. 14.3 × 49 =
15. 15.7 × 99 =
16. 16.14 × 19 =
17. 17.6 × 9 =
18. 18.38 × 99 =
19. 19.8 × 49 =
20. 20.11 × 29 =
21. 21.28 × 98 =
22. 22.9 × 19 =
23. 23.7 × 49 =
24. 24.11 × 49 =
25. 25.9 × 9 =
26. 26.13 × 99 =
27. 27.5 × 49 =
28. 28.13 × 29 =
29. 29.6 × 9 =
30. 30.3 × 29 =
31. 31.8 × 9 =
32. 32.8 × 9 =
33. 33.6 × 9 =
34. 34.8 × 29 =
35. 35.10 × 19 =
36. 36.11 × 9 =
37. 37.18 × 98 =
38. 38.33 × 98 =
39. 39.7 × 99 =
40. 40.11 × 9 =

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