Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 409 · 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. 1.33 × 99 =
2. 2.10 × 9 =
3. 3.35 × 98 =
4. 4.14 × 19 =
5. 5.33 × 98 =
6. 6.7 × 19 =
7. 7.10 × 49 =
8. 8.14 × 29 =
9. 9.20 × 99 =
10. 10.11 × 9 =
11. 11.37 × 98 =
12. 12.8 × 9 =
13. 13.7 × 99 =
14. 14.14 × 19 =
15. 15.6 × 9 =
16. 16.20 × 99 =
17. 17.12 × 98 =
18. 18.28 × 98 =
19. 19.26 × 98 =
20. 20.9 × 49 =
21. 21.10 × 19 =
22. 22.13 × 99 =
23. 23.15 × 99 =
24. 24.5 × 49 =
25. 25.12 × 29 =
26. 26.18 × 98 =
27. 27.10 × 49 =
28. 28.21 × 99 =
29. 29.5 × 19 =
30. 30.13 × 98 =
31. 31.8 × 29 =
32. 32.3 × 9 =
33. 33.6 × 49 =
34. 34.10 × 9 =
35. 35.11 × 9 =
36. 36.10 × 19 =
37. 37.10 × 29 =
38. 38.36 × 98 =
39. 39.14 × 29 =
40. 40.3 × 9 =

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