Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 724 · 40 questions

The trick (Count the places): Forget the points and multiply the whole numbers. Count all the digits after the points in the question. Put the point that many places from the right, then check by rounding.

1. 1.3.2 × 6 — where does the decimal point go? (a) 1.92 (b) 0.192 (c) 192 (d) 19.2
2. 2.4.7 × 1.3 — where does the decimal point go? (a) 61.1 (b) 0.0611 (c) 0.611 (d) 6.11
3. 3.9.4 × 0.4 — where does the decimal point go? (a) 3.76 (b) 37.6 (c) 0.0376 (d) 0.376
4. 4.1.3 × 46 — where does the decimal point go? (a) 59.8 (b) 5.98 (c) 0.598 (d) 598
5. 5.2.1 × 2 — where does the decimal point go? (a) 4.2 (b) 0.42 (c) 0.042 (d) 42
6. 6.1.7 × 2 — where does the decimal point go? (a) 0.034 (b) 3.4 (c) 0.34 (d) 34
7. 7.0.72 × 0.8 — where does the decimal point go? (a) 0.576 (b) 5.76 (c) 0.00576 (d) 0.0576
8. 8.0.25 × 9 — where does the decimal point go? (a) 2.25 (b) 0.225 (c) 22.5 (d) 0.0225
9. 9.0.97 × 2 — where does the decimal point go? (a) 19.4 (b) 0.194 (c) 0.0194 (d) 1.94
10. 10.3.3 × 0.2 — where does the decimal point go? (a) 0.066 (b) 0.66 (c) 6.6 (d) 0.0066
11. 11.0.44 × 8 — where does the decimal point go? (a) 3.52 (b) 0.352 (c) 35.2 (d) 0.0352
12. 12.0.48 × 13 — where does the decimal point go? (a) 6.24 (b) 62.4 (c) 0.624 (d) 0.0624
13. 13.4.7 × 0.3 — where does the decimal point go? (a) 0.141 (b) 0.0141 (c) 1.41 (d) 14.1
14. 14.0.88 × 3.1 — where does the decimal point go? (a) 2.728 (b) 0.2728 (c) 0.02728 (d) 27.28
15. 15.6.4 × 0.2 — where does the decimal point go? (a) 1.28 (b) 12.8 (c) 0.128 (d) 0.0128
16. 16.3.6 × 1.7 — where does the decimal point go? (a) 0.612 (b) 0.0612 (c) 61.2 (d) 6.12
17. 17.0.49 × 3 — where does the decimal point go? (a) 0.0147 (b) 1.47 (c) 0.147 (d) 14.7
18. 18.0.53 × 8 — where does the decimal point go? (a) 0.0424 (b) 0.424 (c) 42.4 (d) 4.24
19. 19.7.1 × 8 — where does the decimal point go? (a) 568 (b) 5.68 (c) 0.568 (d) 56.8
20. 20.0.77 × 6 — where does the decimal point go? (a) 0.0462 (b) 0.462 (c) 4.62 (d) 46.2
21. 21.0.18 × 11 — where does the decimal point go? (a) 0.0198 (b) 19.8 (c) 1.98 (d) 0.198
22. 22.0.91 × 0.5 — where does the decimal point go? (a) 0.0455 (b) 0.00455 (c) 0.455 (d) 4.55
23. 23.0.53 × 23 — where does the decimal point go? (a) 12.19 (b) 0.1219 (c) 1.219 (d) 121.9
24. 24.9.3 × 4 — where does the decimal point go? (a) 0.372 (b) 3.72 (c) 37.2 (d) 372
25. 25.8.4 × 0.2 — where does the decimal point go? (a) 16.8 (b) 0.0168 (c) 0.168 (d) 1.68
26. 26.0.77 × 0.3 — where does the decimal point go? (a) 2.31 (b) 0.0231 (c) 0.00231 (d) 0.231
27. 27.3.9 × 7 — where does the decimal point go? (a) 2.73 (b) 27.3 (c) 273 (d) 0.273
28. 28.0.73 × 2.4 — where does the decimal point go? (a) 0.01752 (b) 0.1752 (c) 17.52 (d) 1.752
29. 29.9.2 × 0.7 — where does the decimal point go? (a) 64.4 (b) 6.44 (c) 0.644 (d) 0.0644
30. 30.0.98 × 32 — where does the decimal point go? (a) 3.136 (b) 313.6 (c) 31.36 (d) 0.3136
31. 31.7.3 × 0.8 — where does the decimal point go? (a) 0.584 (b) 58.4 (c) 0.0584 (d) 5.84
32. 32.3.7 × 3.1 — where does the decimal point go? (a) 11.47 (b) 0.1147 (c) 114.7 (d) 1.147
33. 33.9.8 × 7 — where does the decimal point go? (a) 68.6 (b) 6.86 (c) 0.686 (d) 686
34. 34.7.2 × 1.4 — where does the decimal point go? (a) 10.08 (b) 1.008 (c) 0.1008 (d) 100.8
35. 35.0.57 × 2.7 — where does the decimal point go? (a) 0.01539 (b) 0.1539 (c) 15.39 (d) 1.539
36. 36.0.96 × 8 — where does the decimal point go? (a) 0.0768 (b) 0.768 (c) 7.68 (d) 76.8
37. 37.7.3 × 4.6 — where does the decimal point go? (a) 33.58 (b) 3.358 (c) 335.8 (d) 0.3358
38. 38.5.4 × 11 — where does the decimal point go? (a) 0.594 (b) 59.4 (c) 5.94 (d) 594
39. 39.0.19 × 0.3 — where does the decimal point go? (a) 0.57 (b) 0.00057 (c) 0.0057 (d) 0.057
40. 40.0.69 × 2.8 — where does the decimal point go? (a) 19.32 (b) 0.01932 (c) 1.932 (d) 0.1932

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