Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 155 · 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. 1.12 × 9 =
2. 2.27 × 98 =
3. 3.10 × 19 =
4. 4.12 × 9 =
5. 5.34 × 98 =
6. 6.10 × 19 =
7. 7.8 × 29 =
8. 8.7 × 98 =
9. 9.12 × 9 =
10. 10.5 × 19 =
11. 11.13 × 19 =
12. 12.9 × 29 =
13. 13.38 × 99 =
14. 14.20 × 99 =
15. 15.4 × 9 =
16. 16.21 × 99 =
17. 17.10 × 19 =
18. 18.27 × 99 =
19. 19.10 × 9 =
20. 20.18 × 98 =
21. 21.5 × 29 =
22. 22.20 × 99 =
23. 23.12 × 9 =
24. 24.15 × 29 =
25. 25.9 × 98 =
26. 26.5 × 29 =
27. 27.9 × 99 =
28. 28.19 × 99 =
29. 29.6 × 29 =
30. 30.24 × 99 =
31. 31.11 × 19 =
32. 32.16 × 99 =
33. 33.13 × 49 =
34. 34.4 × 9 =
35. 35.13 × 99 =
36. 36.24 × 98 =
37. 37.30 × 98 =
38. 38.21 × 99 =
39. 39.14 × 19 =
40. 40.30 × 99 =

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