Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 808 · 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. 1.20 × 99 =
2. 2.13 × 19 =
3. 3.16 × 99 =
4. 4.26 × 99 =
5. 5.7 × 29 =
6. 6.12 × 29 =
7. 7.14 × 98 =
8. 8.12 × 19 =
9. 9.30 × 98 =
10. 10.8 × 29 =
11. 11.14 × 19 =
12. 12.11 × 49 =
13. 13.11 × 29 =
14. 14.21 × 99 =
15. 15.3 × 9 =
16. 16.14 × 19 =
17. 17.4 × 29 =
18. 18.5 × 19 =
19. 19.8 × 98 =
20. 20.4 × 9 =
21. 21.6 × 98 =
22. 22.9 × 9 =
23. 23.11 × 19 =
24. 24.5 × 9 =
25. 25.11 × 9 =
26. 26.13 × 99 =
27. 27.13 × 19 =
28. 28.14 × 29 =
29. 29.13 × 19 =
30. 30.11 × 9 =
31. 31.7 × 49 =
32. 32.13 × 19 =
33. 33.12 × 49 =
34. 34.9 × 9 =
35. 35.5 × 29 =
36. 36.4 × 19 =
37. 37.23 × 98 =
38. 38.24 × 99 =
39. 39.10 × 49 =
40. 40.7 × 29 =

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