Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 37 · 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 × 98 =
2. 2.15 × 9 =
3. 3.13 × 19 =
4. 4.15 × 98 =
5. 5.23 × 99 =
6. 6.5 × 49 =
7. 7.10 × 29 =
8. 8.19 × 99 =
9. 9.4 × 29 =
10. 10.7 × 49 =
11. 11.11 × 9 =
12. 12.7 × 9 =
13. 13.7 × 9 =
14. 14.26 × 98 =
15. 15.26 × 99 =
16. 16.31 × 98 =
17. 17.12 × 99 =
18. 18.3 × 9 =
19. 19.6 × 98 =
20. 20.15 × 9 =
21. 21.4 × 9 =
22. 22.8 × 99 =
23. 23.8 × 9 =
24. 24.15 × 9 =
25. 25.38 × 98 =
26. 26.37 × 99 =
27. 27.15 × 49 =
28. 28.24 × 99 =
29. 29.16 × 98 =
30. 30.3 × 49 =
31. 31.10 × 9 =
32. 32.15 × 9 =
33. 33.8 × 49 =
34. 34.9 × 9 =
35. 35.4 × 29 =
36. 36.12 × 29 =
37. 37.19 × 98 =
38. 38.32 × 99 =
39. 39.12 × 49 =
40. 40.18 × 98 =

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