Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 156 · 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. 1.3.8 × 19 — where does the decimal point go? (a) 72.2 (b) 722 (c) 0.722 (d) 7.22
2. 2.8.3 × 46 — where does the decimal point go? (a) 381.8 (b) 3.818 (c) 3818 (d) 38.18
3. 3.4.1 × 0.3 — where does the decimal point go? (a) 0.123 (b) 0.0123 (c) 12.3 (d) 1.23
4. 4.0.34 × 47 — where does the decimal point go? (a) 15.98 (b) 159.8 (c) 1.598 (d) 0.1598
5. 5.0.61 × 26 — where does the decimal point go? (a) 15.86 (b) 0.1586 (c) 158.6 (d) 1.586
6. 6.1.5 × 0.9 — where does the decimal point go? (a) 0.135 (b) 0.0135 (c) 13.5 (d) 1.35
7. 7.0.75 × 2.5 — where does the decimal point go? (a) 0.01875 (b) 18.75 (c) 0.1875 (d) 1.875
8. 8.2.2 × 0.2 — where does the decimal point go? (a) 0.044 (b) 0.0044 (c) 0.44 (d) 4.4
9. 9.0.63 × 3.6 — where does the decimal point go? (a) 22.68 (b) 2.268 (c) 0.02268 (d) 0.2268
10. 10.0.37 × 0.3 — where does the decimal point go? (a) 0.0111 (b) 0.111 (c) 0.00111 (d) 1.11
11. 11.0.72 × 19 — where does the decimal point go? (a) 1.368 (b) 136.8 (c) 13.68 (d) 0.1368
12. 12.0.64 × 4.9 — where does the decimal point go? (a) 3.136 (b) 31.36 (c) 0.03136 (d) 0.3136
13. 13.4.8 × 4.6 — where does the decimal point go? (a) 22.08 (b) 220.8 (c) 2.208 (d) 0.2208
14. 14.0.96 × 2.4 — where does the decimal point go? (a) 2.304 (b) 0.2304 (c) 0.02304 (d) 23.04
15. 15.0.49 × 2 — where does the decimal point go? (a) 0.98 (b) 0.0098 (c) 9.8 (d) 0.098
16. 16.0.72 × 8 — where does the decimal point go? (a) 5.76 (b) 0.576 (c) 0.0576 (d) 57.6
17. 17.0.62 × 0.2 — where does the decimal point go? (a) 0.124 (b) 0.00124 (c) 0.0124 (d) 1.24
18. 18.0.24 × 0.3 — where does the decimal point go? (a) 0.72 (b) 0.0072 (c) 0.00072 (d) 0.072
19. 19.0.47 × 13 — where does the decimal point go? (a) 6.11 (b) 0.0611 (c) 61.1 (d) 0.611
20. 20.0.84 × 0.2 — where does the decimal point go? (a) 0.168 (b) 0.0168 (c) 0.00168 (d) 1.68
21. 21.0.28 × 31 — where does the decimal point go? (a) 0.0868 (b) 0.868 (c) 8.68 (d) 86.8
22. 22.4.6 × 4 — where does the decimal point go? (a) 184 (b) 18.4 (c) 1.84 (d) 0.184
23. 23.0.68 × 8 — where does the decimal point go? (a) 0.0544 (b) 5.44 (c) 54.4 (d) 0.544
24. 24.5.3 × 2.1 — where does the decimal point go? (a) 1.113 (b) 11.13 (c) 0.1113 (d) 111.3
25. 25.1.9 × 9 — where does the decimal point go? (a) 17.1 (b) 0.171 (c) 1.71 (d) 171
26. 26.9.1 × 0.3 — where does the decimal point go? (a) 0.273 (b) 0.0273 (c) 2.73 (d) 27.3
27. 27.0.52 × 46 — where does the decimal point go? (a) 2.392 (b) 239.2 (c) 0.2392 (d) 23.92
28. 28.3.3 × 44 — where does the decimal point go? (a) 145.2 (b) 14.52 (c) 1452 (d) 1.452
29. 29.3.3 × 48 — where does the decimal point go? (a) 1.584 (b) 158.4 (c) 15.84 (d) 1584
30. 30.4.7 × 3.6 — where does the decimal point go? (a) 1.692 (b) 0.1692 (c) 169.2 (d) 16.92
31. 31.7.7 × 15 — where does the decimal point go? (a) 11.55 (b) 1.155 (c) 1155 (d) 115.5
32. 32.1.7 × 0.6 — where does the decimal point go? (a) 1.02 (b) 0.102 (c) 10.2 (d) 0.0102
33. 33.0.64 × 3 — where does the decimal point go? (a) 0.0192 (b) 1.92 (c) 19.2 (d) 0.192
34. 34.0.51 × 13 — where does the decimal point go? (a) 6.63 (b) 0.663 (c) 0.0663 (d) 66.3
35. 35.0.25 × 2.5 — where does the decimal point go? (a) 0.625 (b) 0.00625 (c) 0.0625 (d) 6.25
36. 36.3.6 × 1.3 — where does the decimal point go? (a) 4.68 (b) 46.8 (c) 0.468 (d) 0.0468
37. 37.9.6 × 44 — where does the decimal point go? (a) 422.4 (b) 42.24 (c) 4224 (d) 4.224
38. 38.0.35 × 7 — where does the decimal point go? (a) 24.5 (b) 0.0245 (c) 0.245 (d) 2.45
39. 39.0.21 × 0.2 — where does the decimal point go? (a) 0.042 (b) 0.42 (c) 0.0042 (d) 0.00042
40. 40.2.4 × 0.4 — where does the decimal point go? (a) 0.0096 (b) 0.96 (c) 0.096 (d) 9.6

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