Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 588 · 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 × 29 =
2. 2.9 × 9 =
3. 3.15 × 19 =
4. 4.8 × 98 =
5. 5.30 × 98 =
6. 6.32 × 99 =
7. 7.15 × 9 =
8. 8.5 × 19 =
9. 9.6 × 49 =
10. 10.5 × 9 =
11. 11.10 × 9 =
12. 12.5 × 9 =
13. 13.6 × 9 =
14. 14.22 × 99 =
15. 15.33 × 99 =
16. 16.10 × 19 =
17. 17.14 × 99 =
18. 18.20 × 98 =
19. 19.5 × 19 =
20. 20.7 × 9 =
21. 21.8 × 29 =
22. 22.8 × 19 =
23. 23.40 × 99 =
24. 24.4 × 99 =
25. 25.11 × 9 =
26. 26.3 × 49 =
27. 27.23 × 99 =
28. 28.14 × 29 =
29. 29.14 × 19 =
30. 30.3 × 29 =
31. 31.18 × 98 =
32. 32.9 × 19 =
33. 33.5 × 49 =
34. 34.6 × 9 =
35. 35.14 × 19 =
36. 36.20 × 98 =
37. 37.15 × 9 =
38. 38.6 × 19 =
39. 39.3 × 49 =
40. 40.15 × 49 =

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