Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 652 · 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. 1.0.27 × 0.9 — where does the decimal point go? (a) 0.0243 (b) 0.243 (c) 2.43 (d) 0.00243
2. 2.3.4 × 44 — where does the decimal point go? (a) 1496 (b) 1.496 (c) 149.6 (d) 14.96
3. 3.0.43 × 3.3 — where does the decimal point go? (a) 0.01419 (b) 1.419 (c) 14.19 (d) 0.1419
4. 4.6.5 × 4.3 — where does the decimal point go? (a) 2.795 (b) 27.95 (c) 0.2795 (d) 279.5
5. 5.8.4 × 33 — where does the decimal point go? (a) 27.72 (b) 277.2 (c) 2.772 (d) 2772
6. 6.0.56 × 34 — where does the decimal point go? (a) 19.04 (b) 0.1904 (c) 190.4 (d) 1.904
7. 7.6.5 × 3.5 — where does the decimal point go? (a) 2.275 (b) 0.2275 (c) 22.75 (d) 227.5
8. 8.0.23 × 2.9 — where does the decimal point go? (a) 0.667 (b) 0.00667 (c) 6.67 (d) 0.0667
9. 9.0.99 × 6 — where does the decimal point go? (a) 0.594 (b) 59.4 (c) 0.0594 (d) 5.94
10. 10.0.37 × 4.5 — where does the decimal point go? (a) 0.01665 (b) 1.665 (c) 16.65 (d) 0.1665
11. 11.0.58 × 8 — where does the decimal point go? (a) 0.0464 (b) 4.64 (c) 0.464 (d) 46.4
12. 12.6.2 × 3.4 — where does the decimal point go? (a) 2.108 (b) 0.2108 (c) 21.08 (d) 210.8
13. 13.0.58 × 1.9 — where does the decimal point go? (a) 0.01102 (b) 1.102 (c) 0.1102 (d) 11.02
14. 14.0.79 × 7 — where does the decimal point go? (a) 5.53 (b) 0.553 (c) 55.3 (d) 0.0553
15. 15.0.13 × 4 — where does the decimal point go? (a) 0.0052 (b) 0.052 (c) 5.2 (d) 0.52
16. 16.0.69 × 0.3 — where does the decimal point go? (a) 0.207 (b) 0.00207 (c) 0.0207 (d) 2.07
17. 17.2.1 × 0.9 — where does the decimal point go? (a) 0.0189 (b) 18.9 (c) 0.189 (d) 1.89
18. 18.6.8 × 27 — where does the decimal point go? (a) 1.836 (b) 183.6 (c) 1836 (d) 18.36
19. 19.5.6 × 48 — where does the decimal point go? (a) 2.688 (b) 2688 (c) 26.88 (d) 268.8
20. 20.9.4 × 4.4 — where does the decimal point go? (a) 41.36 (b) 0.4136 (c) 413.6 (d) 4.136
21. 21.0.88 × 3.3 — where does the decimal point go? (a) 2.904 (b) 29.04 (c) 0.02904 (d) 0.2904
22. 22.6.1 × 19 — where does the decimal point go? (a) 115.9 (b) 11.59 (c) 1.159 (d) 1159
23. 23.0.19 × 0.7 — where does the decimal point go? (a) 0.0133 (b) 0.133 (c) 0.00133 (d) 1.33
24. 24.0.91 × 3 — where does the decimal point go? (a) 0.0273 (b) 0.273 (c) 27.3 (d) 2.73
25. 25.0.56 × 0.8 — where does the decimal point go? (a) 0.448 (b) 4.48 (c) 0.00448 (d) 0.0448
26. 26.0.46 × 22 — where does the decimal point go? (a) 101.2 (b) 0.1012 (c) 10.12 (d) 1.012
27. 27.0.18 × 0.2 — where does the decimal point go? (a) 0.00036 (b) 0.036 (c) 0.0036 (d) 0.36
28. 28.6.7 × 17 — where does the decimal point go? (a) 1.139 (b) 1139 (c) 11.39 (d) 113.9
29. 29.0.57 × 45 — where does the decimal point go? (a) 25.65 (b) 256.5 (c) 0.2565 (d) 2.565
30. 30.3.3 × 7 — where does the decimal point go? (a) 2.31 (b) 231 (c) 0.231 (d) 23.1
31. 31.0.28 × 23 — where does the decimal point go? (a) 0.644 (b) 64.4 (c) 0.0644 (d) 6.44
32. 32.8.9 × 36 — where does the decimal point go? (a) 3204 (b) 32.04 (c) 3.204 (d) 320.4
33. 33.1.7 × 8 — where does the decimal point go? (a) 1.36 (b) 0.136 (c) 136 (d) 13.6
34. 34.0.82 × 0.3 — where does the decimal point go? (a) 2.46 (b) 0.0246 (c) 0.00246 (d) 0.246
35. 35.0.22 × 12 — where does the decimal point go? (a) 0.0264 (b) 26.4 (c) 2.64 (d) 0.264
36. 36.3.2 × 0.2 — where does the decimal point go? (a) 6.4 (b) 0.064 (c) 0.0064 (d) 0.64
37. 37.8.1 × 2 — where does the decimal point go? (a) 0.162 (b) 162 (c) 16.2 (d) 1.62
38. 38.0.83 × 0.3 — where does the decimal point go? (a) 0.0249 (b) 0.00249 (c) 2.49 (d) 0.249
39. 39.7.1 × 2.4 — where does the decimal point go? (a) 17.04 (b) 0.1704 (c) 170.4 (d) 1.704
40. 40.4.3 × 4 — where does the decimal point go? (a) 17.2 (b) 172 (c) 1.72 (d) 0.172

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