Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 562 · 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. 2.5 × 98 =
3. 3.8 × 19 =
4. 4.5 × 19 =
5. 5.15 × 9 =
6. 6.10 × 49 =
7. 7.15 × 9 =
8. 8.11 × 9 =
9. 9.11 × 49 =
10. 10.3 × 19 =
11. 11.10 × 98 =
12. 12.32 × 98 =
13. 13.5 × 99 =
14. 14.9 × 29 =
15. 15.17 × 99 =
16. 16.31 × 98 =
17. 17.25 × 98 =
18. 18.15 × 19 =
19. 19.5 × 9 =
20. 20.12 × 9 =
21. 21.12 × 9 =
22. 22.35 × 99 =
23. 23.24 × 98 =
24. 24.12 × 49 =
25. 25.4 × 49 =
26. 26.32 × 99 =
27. 27.3 × 29 =
28. 28.3 × 99 =
29. 29.15 × 29 =
30. 30.8 × 98 =
31. 31.13 × 29 =
32. 32.13 × 19 =
33. 33.5 × 49 =
34. 34.13 × 9 =
35. 35.12 × 29 =
36. 36.8 × 49 =
37. 37.11 × 9 =
38. 38.38 × 98 =
39. 39.10 × 49 =
40. 40.13 × 99 =

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