Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 832 · 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. 1.0.37 × 4.8 — where does the decimal point go? (a) 0.1776 (b) 0.01776 (c) 17.76 (d) 1.776
2. 2.0.75 × 0.3 — where does the decimal point go? (a) 0.00225 (b) 0.0225 (c) 2.25 (d) 0.225
3. 3.0.12 × 9 — where does the decimal point go? (a) 0.0108 (b) 0.108 (c) 1.08 (d) 10.8
4. 4.7.7 × 7 — where does the decimal point go? (a) 0.539 (b) 5.39 (c) 539 (d) 53.9
5. 5.3.5 × 5 — where does the decimal point go? (a) 1.75 (b) 0.175 (c) 17.5 (d) 175
6. 6.0.97 × 2.8 — where does the decimal point go? (a) 0.02716 (b) 27.16 (c) 2.716 (d) 0.2716
7. 7.6.5 × 4.1 — where does the decimal point go? (a) 266.5 (b) 26.65 (c) 2.665 (d) 0.2665
8. 8.0.32 × 2.3 — where does the decimal point go? (a) 0.736 (b) 7.36 (c) 0.00736 (d) 0.0736
9. 9.9.9 × 0.3 — where does the decimal point go? (a) 2.97 (b) 0.297 (c) 0.0297 (d) 29.7
10. 10.0.71 × 17 — where does the decimal point go? (a) 0.1207 (b) 1.207 (c) 12.07 (d) 120.7
11. 11.1.7 × 3.5 — where does the decimal point go? (a) 0.595 (b) 0.0595 (c) 5.95 (d) 59.5
12. 12.5.6 × 3.6 — where does the decimal point go? (a) 20.16 (b) 0.2016 (c) 201.6 (d) 2.016
13. 13.3.2 × 46 — where does the decimal point go? (a) 147.2 (b) 1472 (c) 14.72 (d) 1.472
14. 14.8.5 × 5 — where does the decimal point go? (a) 425 (b) 4.25 (c) 42.5 (d) 0.425
15. 15.0.85 × 35 — where does the decimal point go? (a) 0.2975 (b) 297.5 (c) 2.975 (d) 29.75
16. 16.1.7 × 35 — where does the decimal point go? (a) 595 (b) 0.595 (c) 5.95 (d) 59.5
17. 17.0.51 × 13 — where does the decimal point go? (a) 66.3 (b) 6.63 (c) 0.0663 (d) 0.663
18. 18.4.1 × 3.2 — where does the decimal point go? (a) 0.1312 (b) 1.312 (c) 13.12 (d) 131.2
19. 19.0.91 × 0.4 — where does the decimal point go? (a) 3.64 (b) 0.0364 (c) 0.00364 (d) 0.364
20. 20.0.49 × 5 — where does the decimal point go? (a) 0.245 (b) 2.45 (c) 0.0245 (d) 24.5
21. 21.6.9 × 0.3 — where does the decimal point go? (a) 20.7 (b) 0.0207 (c) 2.07 (d) 0.207
22. 22.0.97 × 8 — where does the decimal point go? (a) 0.776 (b) 7.76 (c) 0.0776 (d) 77.6
23. 23.3.2 × 4 — where does the decimal point go? (a) 128 (b) 0.128 (c) 1.28 (d) 12.8
24. 24.0.73 × 0.2 — where does the decimal point go? (a) 0.0146 (b) 0.00146 (c) 1.46 (d) 0.146
25. 25.0.89 × 1.7 — where does the decimal point go? (a) 15.13 (b) 0.1513 (c) 0.01513 (d) 1.513
26. 26.0.88 × 0.7 — where does the decimal point go? (a) 0.0616 (b) 0.616 (c) 0.00616 (d) 6.16
27. 27.6.7 × 0.3 — where does the decimal point go? (a) 0.0201 (b) 20.1 (c) 2.01 (d) 0.201
28. 28.0.67 × 3.2 — where does the decimal point go? (a) 0.2144 (b) 2.144 (c) 21.44 (d) 0.02144
29. 29.0.53 × 8 — where does the decimal point go? (a) 0.0424 (b) 4.24 (c) 0.424 (d) 42.4
30. 30.0.12 × 0.2 — where does the decimal point go? (a) 0.24 (b) 0.00024 (c) 0.0024 (d) 0.024
31. 31.0.65 × 3 — where does the decimal point go? (a) 19.5 (b) 1.95 (c) 0.0195 (d) 0.195
32. 32.0.95 × 9 — where does the decimal point go? (a) 8.55 (b) 85.5 (c) 0.855 (d) 0.0855
33. 33.0.61 × 13 — where does the decimal point go? (a) 7.93 (b) 0.0793 (c) 79.3 (d) 0.793
34. 34.0.17 × 1.6 — where does the decimal point go? (a) 0.00272 (b) 0.272 (c) 0.0272 (d) 2.72
35. 35.0.53 × 0.5 — where does the decimal point go? (a) 2.65 (b) 0.265 (c) 0.0265 (d) 0.00265
36. 36.3.3 × 1.7 — where does the decimal point go? (a) 0.561 (b) 5.61 (c) 56.1 (d) 0.0561
37. 37.4.9 × 3.9 — where does the decimal point go? (a) 191.1 (b) 0.1911 (c) 1.911 (d) 19.11
38. 38.0.68 × 3.8 — where does the decimal point go? (a) 0.2584 (b) 2.584 (c) 25.84 (d) 0.02584
39. 39.0.28 × 0.6 — where does the decimal point go? (a) 0.0168 (b) 1.68 (c) 0.00168 (d) 0.168
40. 40.6.4 × 0.9 — where does the decimal point go? (a) 0.576 (b) 0.0576 (c) 57.6 (d) 5.76

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