Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 307 · 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. 1.8.8 × 0.9 — where does the decimal point go? (a) 79.2 (b) 7.92 (c) 0.792 (d) 0.0792
2. 2.9.7 × 0.5 — where does the decimal point go? (a) 0.0485 (b) 4.85 (c) 48.5 (d) 0.485
3. 3.1.4 × 3.9 — where does the decimal point go? (a) 5.46 (b) 54.6 (c) 0.546 (d) 0.0546
4. 4.0.94 × 1.8 — where does the decimal point go? (a) 1.692 (b) 0.1692 (c) 16.92 (d) 0.01692
5. 5.0.27 × 0.9 — where does the decimal point go? (a) 2.43 (b) 0.243 (c) 0.00243 (d) 0.0243
6. 6.7.3 × 0.3 — where does the decimal point go? (a) 21.9 (b) 0.0219 (c) 0.219 (d) 2.19
7. 7.0.64 × 2.2 — where does the decimal point go? (a) 0.01408 (b) 0.1408 (c) 14.08 (d) 1.408
8. 8.5.6 × 4 — where does the decimal point go? (a) 2.24 (b) 22.4 (c) 0.224 (d) 224
9. 9.1.8 × 6 — where does the decimal point go? (a) 10.8 (b) 1.08 (c) 0.108 (d) 108
10. 10.8.2 × 0.6 — where does the decimal point go? (a) 4.92 (b) 49.2 (c) 0.492 (d) 0.0492
11. 11.7.4 × 0.6 — where does the decimal point go? (a) 0.444 (b) 0.0444 (c) 44.4 (d) 4.44
12. 12.0.27 × 25 — where does the decimal point go? (a) 0.0675 (b) 6.75 (c) 0.675 (d) 67.5
13. 13.4.8 × 3.6 — where does the decimal point go? (a) 172.8 (b) 0.1728 (c) 17.28 (d) 1.728
14. 14.0.87 × 0.4 — where does the decimal point go? (a) 0.0348 (b) 0.348 (c) 3.48 (d) 0.00348
15. 15.0.33 × 25 — where does the decimal point go? (a) 8.25 (b) 82.5 (c) 0.0825 (d) 0.825
16. 16.0.49 × 1.6 — where does the decimal point go? (a) 7.84 (b) 0.00784 (c) 0.0784 (d) 0.784
17. 17.0.92 × 0.2 — where does the decimal point go? (a) 1.84 (b) 0.00184 (c) 0.0184 (d) 0.184
18. 18.5.9 × 2.9 — where does the decimal point go? (a) 171.1 (b) 1.711 (c) 17.11 (d) 0.1711
19. 19.4.2 × 4.7 — where does the decimal point go? (a) 197.4 (b) 1.974 (c) 0.1974 (d) 19.74
20. 20.6.4 × 3.2 — where does the decimal point go? (a) 204.8 (b) 0.2048 (c) 20.48 (d) 2.048
21. 21.8.1 × 0.5 — where does the decimal point go? (a) 0.405 (b) 4.05 (c) 0.0405 (d) 40.5
22. 22.0.29 × 9 — where does the decimal point go? (a) 2.61 (b) 0.261 (c) 0.0261 (d) 26.1
23. 23.2.8 × 4 — where does the decimal point go? (a) 1.12 (b) 0.112 (c) 112 (d) 11.2
24. 24.0.63 × 0.9 — where does the decimal point go? (a) 0.567 (b) 5.67 (c) 0.0567 (d) 0.00567
25. 25.0.99 × 6 — where does the decimal point go? (a) 5.94 (b) 0.594 (c) 0.0594 (d) 59.4
26. 26.8.8 × 19 — where does the decimal point go? (a) 1672 (b) 1.672 (c) 167.2 (d) 16.72
27. 27.0.23 × 1.6 — where does the decimal point go? (a) 0.0368 (b) 3.68 (c) 0.00368 (d) 0.368
28. 28.2.3 × 34 — where does the decimal point go? (a) 78.2 (b) 0.782 (c) 782 (d) 7.82
29. 29.0.76 × 4.2 — where does the decimal point go? (a) 31.92 (b) 3.192 (c) 0.3192 (d) 0.03192
30. 30.0.82 × 3.1 — where does the decimal point go? (a) 0.2542 (b) 25.42 (c) 2.542 (d) 0.02542
31. 31.0.22 × 2.9 — where does the decimal point go? (a) 0.638 (b) 0.0638 (c) 0.00638 (d) 6.38
32. 32.0.41 × 4.5 — where does the decimal point go? (a) 0.1845 (b) 0.01845 (c) 18.45 (d) 1.845
33. 33.0.26 × 3.9 — where does the decimal point go? (a) 1.014 (b) 0.01014 (c) 0.1014 (d) 10.14
34. 34.0.23 × 0.3 — where does the decimal point go? (a) 0.069 (b) 0.69 (c) 0.0069 (d) 0.00069
35. 35.8.4 × 0.3 — where does the decimal point go? (a) 0.252 (b) 2.52 (c) 25.2 (d) 0.0252
36. 36.2.9 × 0.5 — where does the decimal point go? (a) 0.145 (b) 1.45 (c) 0.0145 (d) 14.5
37. 37.0.57 × 5 — where does the decimal point go? (a) 0.285 (b) 0.0285 (c) 28.5 (d) 2.85
38. 38.6.9 × 4.6 — where does the decimal point go? (a) 0.3174 (b) 3.174 (c) 317.4 (d) 31.74
39. 39.5.6 × 8 — where does the decimal point go? (a) 0.448 (b) 448 (c) 4.48 (d) 44.8
40. 40.4.6 × 33 — where does the decimal point go? (a) 1.518 (b) 1518 (c) 151.8 (d) 15.18

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