Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 581 · 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. 1.3.3 × 2.2 — where does the decimal point go? (a) 0.0726 (b) 7.26 (c) 72.6 (d) 0.726
2. 2.0.79 × 9 — where does the decimal point go? (a) 0.711 (b) 0.0711 (c) 71.1 (d) 7.11
3. 3.1.7 × 26 — where does the decimal point go? (a) 4.42 (b) 44.2 (c) 0.442 (d) 442
4. 4.2.1 × 7 — where does the decimal point go? (a) 0.147 (b) 1.47 (c) 147 (d) 14.7
5. 5.3.9 × 0.7 — where does the decimal point go? (a) 2.73 (b) 0.273 (c) 0.0273 (d) 27.3
6. 6.6.3 × 0.9 — where does the decimal point go? (a) 56.7 (b) 0.0567 (c) 5.67 (d) 0.567
7. 7.0.99 × 32 — where does the decimal point go? (a) 31.68 (b) 0.3168 (c) 3.168 (d) 316.8
8. 8.2.3 × 4.8 — where does the decimal point go? (a) 110.4 (b) 11.04 (c) 0.1104 (d) 1.104
9. 9.0.67 × 3.9 — where does the decimal point go? (a) 26.13 (b) 0.02613 (c) 0.2613 (d) 2.613
10. 10.8.1 × 4.7 — where does the decimal point go? (a) 0.3807 (b) 38.07 (c) 3.807 (d) 380.7
11. 11.7.1 × 2.2 — where does the decimal point go? (a) 0.1562 (b) 1.562 (c) 156.2 (d) 15.62
12. 12.9.7 × 9 — where does the decimal point go? (a) 87.3 (b) 0.873 (c) 873 (d) 8.73
13. 13.0.33 × 0.2 — where does the decimal point go? (a) 0.0066 (b) 0.066 (c) 0.00066 (d) 0.66
14. 14.0.97 × 17 — where does the decimal point go? (a) 0.1649 (b) 16.49 (c) 1.649 (d) 164.9
15. 15.3.6 × 3 — where does the decimal point go? (a) 0.108 (b) 108 (c) 10.8 (d) 1.08
16. 16.0.18 × 0.9 — where does the decimal point go? (a) 0.00162 (b) 0.162 (c) 0.0162 (d) 1.62
17. 17.0.12 × 8 — where does the decimal point go? (a) 9.6 (b) 0.096 (c) 0.96 (d) 0.0096
18. 18.0.92 × 17 — where does the decimal point go? (a) 0.1564 (b) 156.4 (c) 15.64 (d) 1.564
19. 19.0.43 × 0.7 — where does the decimal point go? (a) 0.00301 (b) 0.0301 (c) 0.301 (d) 3.01
20. 20.3.4 × 0.8 — where does the decimal point go? (a) 0.0272 (b) 27.2 (c) 0.272 (d) 2.72
21. 21.8.1 × 0.7 — where does the decimal point go? (a) 0.0567 (b) 5.67 (c) 56.7 (d) 0.567
22. 22.0.97 × 23 — where does the decimal point go? (a) 0.2231 (b) 223.1 (c) 2.231 (d) 22.31
23. 23.0.59 × 8 — where does the decimal point go? (a) 0.472 (b) 4.72 (c) 0.0472 (d) 47.2
24. 24.2.3 × 2.2 — where does the decimal point go? (a) 0.506 (b) 0.0506 (c) 50.6 (d) 5.06
25. 25.0.76 × 1.1 — where does the decimal point go? (a) 0.00836 (b) 0.0836 (c) 0.836 (d) 8.36
26. 26.5.6 × 1.3 — where does the decimal point go? (a) 7.28 (b) 0.728 (c) 0.0728 (d) 72.8
27. 27.0.97 × 8 — where does the decimal point go? (a) 7.76 (b) 0.776 (c) 0.0776 (d) 77.6
28. 28.0.77 × 2 — where does the decimal point go? (a) 0.154 (b) 1.54 (c) 15.4 (d) 0.0154
29. 29.0.83 × 44 — where does the decimal point go? (a) 3.652 (b) 365.2 (c) 0.3652 (d) 36.52
30. 30.2.6 × 7 — where does the decimal point go? (a) 1.82 (b) 182 (c) 0.182 (d) 18.2
31. 31.2.6 × 3 — where does the decimal point go? (a) 0.78 (b) 0.078 (c) 7.8 (d) 78
32. 32.2.7 × 8 — where does the decimal point go? (a) 21.6 (b) 0.216 (c) 216 (d) 2.16
33. 33.0.21 × 6 — where does the decimal point go? (a) 0.126 (b) 1.26 (c) 12.6 (d) 0.0126
34. 34.2.3 × 0.9 — where does the decimal point go? (a) 2.07 (b) 0.207 (c) 0.0207 (d) 20.7
35. 35.0.14 × 1.9 — where does the decimal point go? (a) 0.266 (b) 0.0266 (c) 2.66 (d) 0.00266
36. 36.0.15 × 0.3 — where does the decimal point go? (a) 0.00045 (b) 0.045 (c) 0.45 (d) 0.0045
37. 37.0.72 × 0.2 — where does the decimal point go? (a) 0.0144 (b) 0.144 (c) 0.00144 (d) 1.44
38. 38.0.93 × 18 — where does the decimal point go? (a) 16.74 (b) 1.674 (c) 167.4 (d) 0.1674
39. 39.0.78 × 17 — where does the decimal point go? (a) 13.26 (b) 1.326 (c) 0.1326 (d) 132.6
40. 40.8.3 × 0.2 — where does the decimal point go? (a) 1.66 (b) 0.0166 (c) 0.166 (d) 16.6

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