Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 383 · 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. 1.34 × 98 =
2. 2.8 × 19 =
3. 3.8 × 49 =
4. 4.6 × 29 =
5. 5.12 × 49 =
6. 6.14 × 29 =
7. 7.38 × 98 =
8. 8.6 × 19 =
9. 9.13 × 29 =
10. 10.21 × 98 =
11. 11.19 × 98 =
12. 12.5 × 99 =
13. 13.5 × 49 =
14. 14.9 × 49 =
15. 15.35 × 99 =
16. 16.20 × 99 =
17. 17.5 × 19 =
18. 18.12 × 49 =
19. 19.3 × 98 =
20. 20.10 × 29 =
21. 21.11 × 29 =
22. 22.10 × 29 =
23. 23.12 × 19 =
24. 24.4 × 29 =
25. 25.5 × 19 =
26. 26.19 × 99 =
27. 27.13 × 19 =
28. 28.15 × 19 =
29. 29.14 × 19 =
30. 30.28 × 98 =
31. 31.15 × 19 =
32. 32.11 × 9 =
33. 33.14 × 49 =
34. 34.5 × 29 =
35. 35.14 × 9 =
36. 36.30 × 98 =
37. 37.5 × 19 =
38. 38.3 × 29 =
39. 39.3 × 19 =
40. 40.4 × 29 =

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