Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 317 · 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 × 19 =
2. 2.9 × 19 =
3. 3.27 × 98 =
4. 4.20 × 98 =
5. 5.28 × 99 =
6. 6.9 × 9 =
7. 7.5 × 19 =
8. 8.5 × 9 =
9. 9.15 × 98 =
10. 10.33 × 99 =
11. 11.15 × 9 =
12. 12.9 × 9 =
13. 13.30 × 99 =
14. 14.10 × 99 =
15. 15.27 × 99 =
16. 16.6 × 49 =
17. 17.3 × 49 =
18. 18.13 × 99 =
19. 19.3 × 99 =
20. 20.3 × 9 =
21. 21.12 × 49 =
22. 22.11 × 19 =
23. 23.4 × 29 =
24. 24.4 × 9 =
25. 25.7 × 9 =
26. 26.3 × 29 =
27. 27.15 × 19 =
28. 28.12 × 19 =
29. 29.27 × 99 =
30. 30.23 × 98 =
31. 31.25 × 99 =
32. 32.4 × 29 =
33. 33.9 × 19 =
34. 34.12 × 98 =
35. 35.11 × 29 =
36. 36.4 × 49 =
37. 37.5 × 49 =
38. 38.4 × 29 =
39. 39.26 × 98 =
40. 40.9 × 49 =

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