Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 432 · 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. 1.13 × 49 =
2. 2.7 × 19 =
3. 3.8 × 49 =
4. 4.8 × 99 =
5. 5.10 × 49 =
6. 6.5 × 98 =
7. 7.5 × 19 =
8. 8.9 × 9 =
9. 9.3 × 9 =
10. 10.9 × 9 =
11. 11.3 × 98 =
12. 12.11 × 9 =
13. 13.10 × 98 =
14. 14.12 × 9 =
15. 15.3 × 19 =
16. 16.5 × 19 =
17. 17.18 × 98 =
18. 18.26 × 98 =
19. 19.35 × 98 =
20. 20.5 × 9 =
21. 21.29 × 99 =
22. 22.8 × 19 =
23. 23.14 × 98 =
24. 24.12 × 19 =
25. 25.14 × 19 =
26. 26.14 × 9 =
27. 27.11 × 29 =
28. 28.12 × 49 =
29. 29.28 × 98 =
30. 30.11 × 99 =
31. 31.9 × 19 =
32. 32.12 × 9 =
33. 33.13 × 99 =
34. 34.10 × 49 =
35. 35.3 × 19 =
36. 36.9 × 19 =
37. 37.12 × 49 =
38. 38.12 × 99 =
39. 39.9 × 99 =
40. 40.25 × 99 =

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