Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 258 · 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. 1.0.39 × 16 — where does the decimal point go? (a) 0.624 (b) 0.0624 (c) 6.24 (d) 62.4
2. 2.0.35 × 0.7 — where does the decimal point go? (a) 0.245 (b) 0.00245 (c) 2.45 (d) 0.0245
3. 3.0.37 × 5 — where does the decimal point go? (a) 18.5 (b) 0.0185 (c) 0.185 (d) 1.85
4. 4.8.7 × 2 — where does the decimal point go? (a) 1.74 (b) 0.174 (c) 17.4 (d) 174
5. 5.9.4 × 8 — where does the decimal point go? (a) 75.2 (b) 0.752 (c) 7.52 (d) 752
6. 6.4.9 × 0.7 — where does the decimal point go? (a) 0.343 (b) 3.43 (c) 34.3 (d) 0.0343
7. 7.1.7 × 0.4 — where does the decimal point go? (a) 0.068 (b) 6.8 (c) 0.68 (d) 0.0068
8. 8.7.7 × 0.6 — where does the decimal point go? (a) 0.0462 (b) 46.2 (c) 4.62 (d) 0.462
9. 9.4.8 × 0.3 — where does the decimal point go? (a) 14.4 (b) 0.0144 (c) 0.144 (d) 1.44
10. 10.0.46 × 21 — where does the decimal point go? (a) 0.0966 (b) 0.966 (c) 96.6 (d) 9.66
11. 11.3.4 × 49 — where does the decimal point go? (a) 16.66 (b) 1666 (c) 1.666 (d) 166.6
12. 12.6.7 × 1.7 — where does the decimal point go? (a) 1.139 (b) 0.1139 (c) 11.39 (d) 113.9
13. 13.0.63 × 5 — where does the decimal point go? (a) 0.315 (b) 31.5 (c) 3.15 (d) 0.0315
14. 14.0.52 × 3.4 — where does the decimal point go? (a) 1.768 (b) 0.1768 (c) 0.01768 (d) 17.68
15. 15.7.6 × 9 — where does the decimal point go? (a) 684 (b) 6.84 (c) 0.684 (d) 68.4
16. 16.4.3 × 4 — where does the decimal point go? (a) 1.72 (b) 172 (c) 0.172 (d) 17.2
17. 17.0.16 × 8 — where does the decimal point go? (a) 0.0128 (b) 1.28 (c) 0.128 (d) 12.8
18. 18.0.54 × 1.8 — where does the decimal point go? (a) 0.972 (b) 9.72 (c) 0.0972 (d) 0.00972
19. 19.0.56 × 0.8 — where does the decimal point go? (a) 0.0448 (b) 0.00448 (c) 0.448 (d) 4.48
20. 20.0.43 × 36 — where does the decimal point go? (a) 1.548 (b) 15.48 (c) 0.1548 (d) 154.8
21. 21.0.88 × 19 — where does the decimal point go? (a) 16.72 (b) 0.1672 (c) 167.2 (d) 1.672
22. 22.0.51 × 4.6 — where does the decimal point go? (a) 2.346 (b) 0.2346 (c) 0.02346 (d) 23.46
23. 23.0.95 × 0.9 — where does the decimal point go? (a) 0.00855 (b) 0.855 (c) 8.55 (d) 0.0855
24. 24.7.3 × 9 — where does the decimal point go? (a) 0.657 (b) 657 (c) 65.7 (d) 6.57
25. 25.9.3 × 34 — where does the decimal point go? (a) 31.62 (b) 3.162 (c) 316.2 (d) 3162
26. 26.6.2 × 4.4 — where does the decimal point go? (a) 2.728 (b) 272.8 (c) 27.28 (d) 0.2728
27. 27.0.66 × 38 — where does the decimal point go? (a) 2.508 (b) 25.08 (c) 250.8 (d) 0.2508
28. 28.0.44 × 8 — where does the decimal point go? (a) 0.0352 (b) 3.52 (c) 0.352 (d) 35.2
29. 29.0.41 × 6 — where does the decimal point go? (a) 0.0246 (b) 0.246 (c) 2.46 (d) 24.6
30. 30.5.2 × 26 — where does the decimal point go? (a) 135.2 (b) 13.52 (c) 1.352 (d) 1352
31. 31.2.3 × 0.5 — where does the decimal point go? (a) 11.5 (b) 0.115 (c) 0.0115 (d) 1.15
32. 32.3.6 × 22 — where does the decimal point go? (a) 7.92 (b) 792 (c) 79.2 (d) 0.792
33. 33.0.39 × 26 — where does the decimal point go? (a) 0.1014 (b) 10.14 (c) 101.4 (d) 1.014
34. 34.0.83 × 0.5 — where does the decimal point go? (a) 0.415 (b) 0.00415 (c) 4.15 (d) 0.0415
35. 35.0.23 × 3 — where does the decimal point go? (a) 0.69 (b) 6.9 (c) 0.0069 (d) 0.069
36. 36.7.6 × 2.2 — where does the decimal point go? (a) 0.1672 (b) 16.72 (c) 167.2 (d) 1.672
37. 37.0.31 × 31 — where does the decimal point go? (a) 0.0961 (b) 0.961 (c) 96.1 (d) 9.61
38. 38.0.99 × 0.9 — where does the decimal point go? (a) 0.0891 (b) 0.891 (c) 8.91 (d) 0.00891
39. 39.9.3 × 0.2 — where does the decimal point go? (a) 0.0186 (b) 18.6 (c) 1.86 (d) 0.186
40. 40.0.68 × 48 — where does the decimal point go? (a) 3.264 (b) 32.64 (c) 326.4 (d) 0.3264

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