Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 266 · 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. 1.7.7 × 2 — where does the decimal point go? (a) 154 (b) 15.4 (c) 1.54 (d) 0.154
2. 2.0.51 × 0.3 — where does the decimal point go? (a) 0.0153 (b) 0.153 (c) 1.53 (d) 0.00153
3. 3.0.38 × 2 — where does the decimal point go? (a) 0.76 (b) 7.6 (c) 0.0076 (d) 0.076
4. 4.2.7 × 4 — where does the decimal point go? (a) 1.08 (b) 108 (c) 0.108 (d) 10.8
5. 5.0.61 × 0.7 — where does the decimal point go? (a) 0.00427 (b) 4.27 (c) 0.0427 (d) 0.427
6. 6.0.97 × 1.5 — where does the decimal point go? (a) 14.55 (b) 1.455 (c) 0.01455 (d) 0.1455
7. 7.6.9 × 0.3 — where does the decimal point go? (a) 0.0207 (b) 2.07 (c) 0.207 (d) 20.7
8. 8.3.2 × 7 — where does the decimal point go? (a) 22.4 (b) 0.224 (c) 224 (d) 2.24
9. 9.0.37 × 0.6 — where does the decimal point go? (a) 0.00222 (b) 0.222 (c) 2.22 (d) 0.0222
10. 10.0.64 × 46 — where does the decimal point go? (a) 2.944 (b) 294.4 (c) 0.2944 (d) 29.44
11. 11.3.4 × 0.8 — where does the decimal point go? (a) 0.0272 (b) 27.2 (c) 2.72 (d) 0.272
12. 12.0.47 × 2.7 — where does the decimal point go? (a) 12.69 (b) 0.1269 (c) 0.01269 (d) 1.269
13. 13.9.1 × 28 — where does the decimal point go? (a) 254.8 (b) 2.548 (c) 2548 (d) 25.48
14. 14.0.13 × 2 — where does the decimal point go? (a) 0.0026 (b) 0.26 (c) 2.6 (d) 0.026
15. 15.0.95 × 3 — where does the decimal point go? (a) 2.85 (b) 28.5 (c) 0.285 (d) 0.0285
16. 16.1.3 × 8 — where does the decimal point go? (a) 1.04 (b) 10.4 (c) 104 (d) 0.104
17. 17.8.2 × 4 — where does the decimal point go? (a) 0.328 (b) 328 (c) 3.28 (d) 32.8
18. 18.1.8 × 3.6 — where does the decimal point go? (a) 64.8 (b) 0.0648 (c) 0.648 (d) 6.48
19. 19.3.2 × 9 — where does the decimal point go? (a) 28.8 (b) 2.88 (c) 0.288 (d) 288
20. 20.9.4 × 6 — where does the decimal point go? (a) 5.64 (b) 56.4 (c) 0.564 (d) 564
21. 21.6.3 × 3.3 — where does the decimal point go? (a) 20.79 (b) 2.079 (c) 0.2079 (d) 207.9
22. 22.9.2 × 0.6 — where does the decimal point go? (a) 5.52 (b) 0.552 (c) 55.2 (d) 0.0552
23. 23.5.8 × 31 — where does the decimal point go? (a) 1.798 (b) 17.98 (c) 1798 (d) 179.8
24. 24.9.1 × 2 — where does the decimal point go? (a) 18.2 (b) 1.82 (c) 182 (d) 0.182
25. 25.0.67 × 0.4 — where does the decimal point go? (a) 0.268 (b) 0.00268 (c) 0.0268 (d) 2.68
26. 26.6.1 × 8 — where does the decimal point go? (a) 48.8 (b) 4.88 (c) 0.488 (d) 488
27. 27.1.3 × 12 — where does the decimal point go? (a) 15.6 (b) 0.156 (c) 1.56 (d) 156
28. 28.0.83 × 0.6 — where does the decimal point go? (a) 0.0498 (b) 0.00498 (c) 4.98 (d) 0.498
29. 29.9.6 × 0.6 — where does the decimal point go? (a) 0.0576 (b) 57.6 (c) 0.576 (d) 5.76
30. 30.0.78 × 7 — where does the decimal point go? (a) 5.46 (b) 0.546 (c) 0.0546 (d) 54.6
31. 31.0.44 × 0.2 — where does the decimal point go? (a) 0.88 (b) 0.00088 (c) 0.088 (d) 0.0088
32. 32.0.53 × 0.2 — where does the decimal point go? (a) 0.0106 (b) 0.00106 (c) 1.06 (d) 0.106
33. 33.0.48 × 2 — where does the decimal point go? (a) 0.0096 (b) 0.096 (c) 9.6 (d) 0.96
34. 34.0.57 × 0.5 — where does the decimal point go? (a) 0.0285 (b) 2.85 (c) 0.00285 (d) 0.285
35. 35.4.3 × 4.4 — where does the decimal point go? (a) 1.892 (b) 18.92 (c) 189.2 (d) 0.1892
36. 36.8.8 × 3 — where does the decimal point go? (a) 2.64 (b) 0.264 (c) 26.4 (d) 264
37. 37.5.1 × 0.7 — where does the decimal point go? (a) 0.357 (b) 0.0357 (c) 35.7 (d) 3.57
38. 38.7.3 × 1.5 — where does the decimal point go? (a) 109.5 (b) 0.1095 (c) 1.095 (d) 10.95
39. 39.0.53 × 0.3 — where does the decimal point go? (a) 0.0159 (b) 1.59 (c) 0.00159 (d) 0.159
40. 40.0.33 × 3.6 — where does the decimal point go? (a) 1.188 (b) 11.88 (c) 0.1188 (d) 0.01188

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