Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 786 · 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. 2.22 × 98 =
3. 3.9 × 29 =
4. 4.12 × 9 =
5. 5.26 × 98 =
6. 6.14 × 98 =
7. 7.13 × 29 =
8. 8.7 × 19 =
9. 9.4 × 29 =
10. 10.14 × 9 =
11. 11.5 × 9 =
12. 12.12 × 49 =
13. 13.14 × 9 =
14. 14.35 × 99 =
15. 15.14 × 19 =
16. 16.30 × 98 =
17. 17.37 × 99 =
18. 18.27 × 98 =
19. 19.3 × 29 =
20. 20.11 × 9 =
21. 21.9 × 9 =
22. 22.33 × 99 =
23. 23.40 × 98 =
24. 24.6 × 29 =
25. 25.5 × 49 =
26. 26.12 × 29 =
27. 27.13 × 99 =
28. 28.27 × 98 =
29. 29.5 × 99 =
30. 30.14 × 9 =
31. 31.5 × 49 =
32. 32.11 × 9 =
33. 33.26 × 99 =
34. 34.11 × 9 =
35. 35.3 × 19 =
36. 36.22 × 98 =
37. 37.8 × 9 =
38. 38.8 × 49 =
39. 39.4 × 9 =
40. 40.5 × 19 =

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