Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 367 · 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. 1.8 × 9 =
2. 2.15 × 19 =
3. 3.8 × 19 =
4. 4.14 × 9 =
5. 5.29 × 98 =
6. 6.11 × 9 =
7. 7.33 × 98 =
8. 8.7 × 49 =
9. 9.7 × 29 =
10. 10.7 × 29 =
11. 11.8 × 49 =
12. 12.7 × 9 =
13. 13.4 × 99 =
14. 14.3 × 29 =
15. 15.7 × 49 =
16. 16.9 × 29 =
17. 17.4 × 19 =
18. 18.5 × 98 =
19. 19.30 × 99 =
20. 20.26 × 99 =
21. 21.14 × 98 =
22. 22.26 × 99 =
23. 23.20 × 98 =
24. 24.39 × 99 =
25. 25.14 × 98 =
26. 26.29 × 98 =
27. 27.12 × 9 =
28. 28.15 × 49 =
29. 29.20 × 98 =
30. 30.9 × 19 =
31. 31.4 × 29 =
32. 32.10 × 98 =
33. 33.17 × 99 =
34. 34.7 × 9 =
35. 35.12 × 49 =
36. 36.38 × 99 =
37. 37.13 × 19 =
38. 38.23 × 99 =
39. 39.6 × 98 =
40. 40.4 × 98 =

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