Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 850 · 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. 2.37 × 99 =
3. 3.8 × 19 =
4. 4.19 × 98 =
5. 5.12 × 49 =
6. 6.4 × 9 =
7. 7.6 × 29 =
8. 8.34 × 99 =
9. 9.15 × 29 =
10. 10.5 × 49 =
11. 11.10 × 99 =
12. 12.5 × 9 =
13. 13.8 × 49 =
14. 14.6 × 19 =
15. 15.27 × 99 =
16. 16.7 × 29 =
17. 17.15 × 29 =
18. 18.6 × 19 =
19. 19.8 × 98 =
20. 20.8 × 49 =
21. 21.29 × 98 =
22. 22.14 × 99 =
23. 23.12 × 29 =
24. 24.26 × 98 =
25. 25.33 × 99 =
26. 26.3 × 29 =
27. 27.10 × 9 =
28. 28.19 × 98 =
29. 29.14 × 49 =
30. 30.15 × 49 =
31. 31.30 × 98 =
32. 32.6 × 49 =
33. 33.3 × 99 =
34. 34.7 × 9 =
35. 35.10 × 49 =
36. 36.10 × 49 =
37. 37.8 × 49 =
38. 38.31 × 99 =
39. 39.9 × 19 =
40. 40.12 × 9 =

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