Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 895 · 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. 1.6.7 × 3 — where does the decimal point go? (a) 2.01 (b) 20.1 (c) 201 (d) 0.201
2. 2.0.21 × 0.2 — where does the decimal point go? (a) 0.42 (b) 0.042 (c) 0.00042 (d) 0.0042
3. 3.5.7 × 26 — where does the decimal point go? (a) 148.2 (b) 14.82 (c) 1482 (d) 1.482
4. 4.2.4 × 3.3 — where does the decimal point go? (a) 7.92 (b) 0.0792 (c) 79.2 (d) 0.792
5. 5.0.13 × 4.6 — where does the decimal point go? (a) 0.0598 (b) 0.598 (c) 0.00598 (d) 5.98
6. 6.0.86 × 3 — where does the decimal point go? (a) 25.8 (b) 0.258 (c) 0.0258 (d) 2.58
7. 7.0.87 × 4.7 — where does the decimal point go? (a) 4.089 (b) 0.4089 (c) 40.89 (d) 0.04089
8. 8.8.2 × 0.9 — where does the decimal point go? (a) 7.38 (b) 0.0738 (c) 0.738 (d) 73.8
9. 9.8.4 × 48 — where does the decimal point go? (a) 4.032 (b) 4032 (c) 40.32 (d) 403.2
10. 10.3.5 × 15 — where does the decimal point go? (a) 5.25 (b) 52.5 (c) 0.525 (d) 525
11. 11.0.37 × 3.4 — where does the decimal point go? (a) 0.1258 (b) 1.258 (c) 12.58 (d) 0.01258
12. 12.0.39 × 6 — where does the decimal point go? (a) 23.4 (b) 0.0234 (c) 0.234 (d) 2.34
13. 13.3.4 × 1.3 — where does the decimal point go? (a) 44.2 (b) 0.442 (c) 4.42 (d) 0.0442
14. 14.6.8 × 4 — where does the decimal point go? (a) 0.272 (b) 2.72 (c) 272 (d) 27.2
15. 15.8.9 × 0.8 — where does the decimal point go? (a) 0.712 (b) 71.2 (c) 0.0712 (d) 7.12
16. 16.0.37 × 46 — where does the decimal point go? (a) 1.702 (b) 0.1702 (c) 170.2 (d) 17.02
17. 17.2.3 × 2 — where does the decimal point go? (a) 46 (b) 0.046 (c) 0.46 (d) 4.6
18. 18.0.98 × 4 — where does the decimal point go? (a) 0.0392 (b) 3.92 (c) 0.392 (d) 39.2
19. 19.6.1 × 3.8 — where does the decimal point go? (a) 2.318 (b) 231.8 (c) 0.2318 (d) 23.18
20. 20.9.7 × 1.6 — where does the decimal point go? (a) 15.52 (b) 0.1552 (c) 155.2 (d) 1.552
21. 21.6.4 × 3 — where does the decimal point go? (a) 1.92 (b) 192 (c) 19.2 (d) 0.192
22. 22.7.1 × 4 — where does the decimal point go? (a) 28.4 (b) 2.84 (c) 0.284 (d) 284
23. 23.0.44 × 4.7 — where does the decimal point go? (a) 20.68 (b) 0.2068 (c) 0.02068 (d) 2.068
24. 24.2.8 × 0.3 — where does the decimal point go? (a) 0.84 (b) 0.084 (c) 0.0084 (d) 8.4
25. 25.6.6 × 0.9 — where does the decimal point go? (a) 0.0594 (b) 5.94 (c) 59.4 (d) 0.594
26. 26.3.6 × 2 — where does the decimal point go? (a) 0.072 (b) 7.2 (c) 72 (d) 0.72
27. 27.0.83 × 49 — where does the decimal point go? (a) 4.067 (b) 406.7 (c) 40.67 (d) 0.4067
28. 28.0.37 × 0.7 — where does the decimal point go? (a) 0.0259 (b) 0.00259 (c) 2.59 (d) 0.259
29. 29.1.4 × 1.9 — where does the decimal point go? (a) 0.0266 (b) 2.66 (c) 26.6 (d) 0.266
30. 30.6.8 × 3 — where does the decimal point go? (a) 20.4 (b) 0.204 (c) 204 (d) 2.04
31. 31.0.97 × 0.6 — where does the decimal point go? (a) 0.582 (b) 5.82 (c) 0.00582 (d) 0.0582
32. 32.0.45 × 9 — where does the decimal point go? (a) 0.0405 (b) 0.405 (c) 40.5 (d) 4.05
33. 33.8.2 × 1.2 — where does the decimal point go? (a) 9.84 (b) 0.0984 (c) 98.4 (d) 0.984
34. 34.8.1 × 0.3 — where does the decimal point go? (a) 2.43 (b) 0.0243 (c) 24.3 (d) 0.243
35. 35.0.27 × 6 — where does the decimal point go? (a) 1.62 (b) 16.2 (c) 0.162 (d) 0.0162
36. 36.0.58 × 12 — where does the decimal point go? (a) 0.696 (b) 0.0696 (c) 69.6 (d) 6.96
37. 37.0.28 × 0.4 — where does the decimal point go? (a) 0.0112 (b) 0.112 (c) 1.12 (d) 0.00112
38. 38.0.17 × 8 — where does the decimal point go? (a) 1.36 (b) 0.136 (c) 13.6 (d) 0.0136
39. 39.0.54 × 0.3 — where does the decimal point go? (a) 0.162 (b) 0.00162 (c) 0.0162 (d) 1.62
40. 40.4.6 × 0.3 — where does the decimal point go? (a) 13.8 (b) 1.38 (c) 0.0138 (d) 0.138

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