Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 487 · 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 × 49 =
2. 2.4 × 19 =
3. 3.20 × 99 =
4. 4.4 × 98 =
5. 5.9 × 19 =
6. 6.6 × 49 =
7. 7.32 × 98 =
8. 8.5 × 19 =
9. 9.15 × 29 =
10. 10.9 × 19 =
11. 11.9 × 99 =
12. 12.11 × 9 =
13. 13.10 × 29 =
14. 14.10 × 19 =
15. 15.3 × 19 =
16. 16.15 × 29 =
17. 17.7 × 29 =
18. 18.7 × 9 =
19. 19.12 × 99 =
20. 20.14 × 98 =
21. 21.8 × 49 =
22. 22.10 × 49 =
23. 23.14 × 49 =
24. 24.4 × 29 =
25. 25.3 × 19 =
26. 26.20 × 99 =
27. 27.9 × 29 =
28. 28.15 × 49 =
29. 29.6 × 29 =
30. 30.11 × 49 =
31. 31.4 × 98 =
32. 32.34 × 98 =
33. 33.34 × 99 =
34. 34.10 × 19 =
35. 35.13 × 9 =
36. 36.30 × 98 =
37. 37.6 × 9 =
38. 38.12 × 29 =
39. 39.36 × 98 =
40. 40.10 × 49 =

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