Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 535 · 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. 1.7 × 99 =
2. 2.35 × 99 =
3. 3.10 × 19 =
4. 4.38 × 99 =
5. 5.23 × 99 =
6. 6.5 × 9 =
7. 7.10 × 9 =
8. 8.3 × 29 =
9. 9.11 × 49 =
10. 10.3 × 29 =
11. 11.4 × 19 =
12. 12.7 × 9 =
13. 13.15 × 9 =
14. 14.30 × 98 =
15. 15.16 × 99 =
16. 16.4 × 9 =
17. 17.11 × 9 =
18. 18.8 × 19 =
19. 19.15 × 99 =
20. 20.15 × 49 =
21. 21.11 × 99 =
22. 22.31 × 99 =
23. 23.15 × 19 =
24. 24.19 × 98 =
25. 25.9 × 9 =
26. 26.8 × 29 =
27. 27.9 × 9 =
28. 28.36 × 99 =
29. 29.14 × 98 =
30. 30.24 × 98 =
31. 31.26 × 99 =
32. 32.14 × 99 =
33. 33.10 × 19 =
34. 34.20 × 99 =
35. 35.7 × 9 =
36. 36.14 × 9 =
37. 37.14 × 19 =
38. 38.34 × 99 =
39. 39.3 × 49 =
40. 40.31 × 99 =

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