Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 104 · 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. 1.15 × 49 =
2. 2.9 × 98 =
3. 3.39 × 99 =
4. 4.6 × 9 =
5. 5.10 × 98 =
6. 6.4 × 99 =
7. 7.10 × 49 =
8. 8.13 × 49 =
9. 9.5 × 29 =
10. 10.3 × 99 =
11. 11.11 × 9 =
12. 12.5 × 19 =
13. 13.15 × 9 =
14. 14.34 × 98 =
15. 15.8 × 49 =
16. 16.3 × 49 =
17. 17.34 × 99 =
18. 18.12 × 19 =
19. 19.3 × 19 =
20. 20.20 × 98 =
21. 21.14 × 9 =
22. 22.9 × 49 =
23. 23.30 × 98 =
24. 24.13 × 99 =
25. 25.4 × 19 =
26. 26.6 × 29 =
27. 27.10 × 29 =
28. 28.12 × 9 =
29. 29.22 × 99 =
30. 30.11 × 9 =
31. 31.14 × 98 =
32. 32.10 × 19 =
33. 33.8 × 29 =
34. 34.13 × 9 =
35. 35.35 × 98 =
36. 36.31 × 98 =
37. 37.38 × 98 =
38. 38.3 × 29 =
39. 39.3 × 98 =
40. 40.3 × 29 =

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