Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 207 · 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. 1.8 × 29 =
2. 2.4 × 9 =
3. 3.26 × 99 =
4. 4.13 × 49 =
5. 5.32 × 98 =
6. 6.34 × 99 =
7. 7.20 × 99 =
8. 8.14 × 9 =
9. 9.14 × 49 =
10. 10.4 × 29 =
11. 11.8 × 49 =
12. 12.12 × 29 =
13. 13.19 × 99 =
14. 14.11 × 9 =
15. 15.4 × 29 =
16. 16.6 × 99 =
17. 17.18 × 99 =
18. 18.12 × 49 =
19. 19.14 × 29 =
20. 20.12 × 29 =
21. 21.11 × 98 =
22. 22.15 × 98 =
23. 23.5 × 49 =
24. 24.13 × 29 =
25. 25.10 × 98 =
26. 26.3 × 19 =
27. 27.4 × 19 =
28. 28.39 × 99 =
29. 29.14 × 19 =
30. 30.6 × 19 =
31. 31.10 × 19 =
32. 32.14 × 9 =
33. 33.5 × 9 =
34. 34.3 × 49 =
35. 35.5 × 49 =
36. 36.40 × 99 =
37. 37.19 × 99 =
38. 38.6 × 99 =
39. 39.27 × 99 =
40. 40.40 × 99 =

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