Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 648 · 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. 1.5 × 29 =
2. 2.11 × 99 =
3. 3.17 × 99 =
4. 4.10 × 99 =
5. 5.7 × 49 =
6. 6.9 × 19 =
7. 7.5 × 19 =
8. 8.3 × 49 =
9. 9.5 × 98 =
10. 10.3 × 98 =
11. 11.3 × 9 =
12. 12.10 × 29 =
13. 13.6 × 29 =
14. 14.3 × 29 =
15. 15.28 × 98 =
16. 16.9 × 19 =
17. 17.6 × 49 =
18. 18.10 × 9 =
19. 19.8 × 19 =
20. 20.11 × 99 =
21. 21.4 × 9 =
22. 22.14 × 19 =
23. 23.35 × 98 =
24. 24.15 × 19 =
25. 25.7 × 98 =
26. 26.11 × 19 =
27. 27.5 × 19 =
28. 28.20 × 99 =
29. 29.10 × 19 =
30. 30.27 × 99 =
31. 31.3 × 19 =
32. 32.13 × 19 =
33. 33.3 × 49 =
34. 34.10 × 29 =
35. 35.38 × 99 =
36. 36.16 × 99 =
37. 37.19 × 99 =
38. 38.9 × 19 =
39. 39.5 × 9 =
40. 40.11 × 19 =

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