Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 811 · 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. 1.4.8 × 0.4 — where does the decimal point go? (a) 0.192 (b) 1.92 (c) 0.0192 (d) 19.2
2. 2.0.73 × 37 — where does the decimal point go? (a) 0.2701 (b) 270.1 (c) 27.01 (d) 2.701
3. 3.0.62 × 2.4 — where does the decimal point go? (a) 14.88 (b) 0.1488 (c) 0.01488 (d) 1.488
4. 4.7.1 × 46 — where does the decimal point go? (a) 3.266 (b) 32.66 (c) 326.6 (d) 3266
5. 5.0.59 × 4.4 — where does the decimal point go? (a) 0.2596 (b) 25.96 (c) 2.596 (d) 0.02596
6. 6.0.93 × 9 — where does the decimal point go? (a) 8.37 (b) 0.0837 (c) 83.7 (d) 0.837
7. 7.2.2 × 23 — where does the decimal point go? (a) 5.06 (b) 50.6 (c) 506 (d) 0.506
8. 8.4.6 × 44 — where does the decimal point go? (a) 2.024 (b) 2024 (c) 20.24 (d) 202.4
9. 9.0.47 × 2 — where does the decimal point go? (a) 0.094 (b) 0.94 (c) 0.0094 (d) 9.4
10. 10.2.4 × 16 — where does the decimal point go? (a) 3.84 (b) 384 (c) 0.384 (d) 38.4
11. 11.0.22 × 7 — where does the decimal point go? (a) 1.54 (b) 15.4 (c) 0.0154 (d) 0.154
12. 12.0.46 × 2.3 — where does the decimal point go? (a) 1.058 (b) 0.1058 (c) 10.58 (d) 0.01058
13. 13.3.1 × 13 — where does the decimal point go? (a) 40.3 (b) 403 (c) 0.403 (d) 4.03
14. 14.0.36 × 0.8 — where does the decimal point go? (a) 0.00288 (b) 2.88 (c) 0.288 (d) 0.0288
15. 15.0.68 × 8 — where does the decimal point go? (a) 5.44 (b) 0.544 (c) 0.0544 (d) 54.4
16. 16.6.7 × 0.2 — where does the decimal point go? (a) 0.134 (b) 13.4 (c) 0.0134 (d) 1.34
17. 17.0.76 × 9 — where does the decimal point go? (a) 0.684 (b) 68.4 (c) 6.84 (d) 0.0684
18. 18.2.7 × 2.2 — where does the decimal point go? (a) 59.4 (b) 5.94 (c) 0.594 (d) 0.0594
19. 19.0.37 × 45 — where does the decimal point go? (a) 16.65 (b) 1.665 (c) 166.5 (d) 0.1665
20. 20.5.4 × 0.2 — where does the decimal point go? (a) 10.8 (b) 0.0108 (c) 1.08 (d) 0.108
21. 21.1.8 × 0.4 — where does the decimal point go? (a) 0.72 (b) 0.0072 (c) 7.2 (d) 0.072
22. 22.4.2 × 1.9 — where does the decimal point go? (a) 0.798 (b) 79.8 (c) 7.98 (d) 0.0798
23. 23.0.53 × 0.6 — where does the decimal point go? (a) 0.318 (b) 3.18 (c) 0.0318 (d) 0.00318
24. 24.0.46 × 13 — where does the decimal point go? (a) 0.0598 (b) 5.98 (c) 0.598 (d) 59.8
25. 25.0.19 × 0.6 — where does the decimal point go? (a) 0.114 (b) 0.0114 (c) 0.00114 (d) 1.14
26. 26.0.33 × 2.9 — where does the decimal point go? (a) 0.00957 (b) 0.957 (c) 0.0957 (d) 9.57
27. 27.1.6 × 0.8 — where does the decimal point go? (a) 0.0128 (b) 12.8 (c) 1.28 (d) 0.128
28. 28.0.54 × 31 — where does the decimal point go? (a) 167.4 (b) 16.74 (c) 0.1674 (d) 1.674
29. 29.5.9 × 0.3 — where does the decimal point go? (a) 1.77 (b) 17.7 (c) 0.177 (d) 0.0177
30. 30.7.5 × 0.3 — where does the decimal point go? (a) 2.25 (b) 0.0225 (c) 22.5 (d) 0.225
31. 31.3.7 × 2 — where does the decimal point go? (a) 0.74 (b) 7.4 (c) 74 (d) 0.074
32. 32.8.1 × 49 — where does the decimal point go? (a) 39.69 (b) 396.9 (c) 3969 (d) 3.969
33. 33.1.3 × 19 — where does the decimal point go? (a) 24.7 (b) 247 (c) 2.47 (d) 0.247
34. 34.2.2 × 4.9 — where does the decimal point go? (a) 1.078 (b) 0.1078 (c) 10.78 (d) 107.8
35. 35.1.2 × 43 — where does the decimal point go? (a) 0.516 (b) 51.6 (c) 5.16 (d) 516
36. 36.3.9 × 9 — where does the decimal point go? (a) 3.51 (b) 0.351 (c) 35.1 (d) 351
37. 37.8.7 × 9 — where does the decimal point go? (a) 7.83 (b) 0.783 (c) 783 (d) 78.3
38. 38.6.2 × 0.8 — where does the decimal point go? (a) 0.0496 (b) 49.6 (c) 4.96 (d) 0.496
39. 39.1.9 × 0.6 — where does the decimal point go? (a) 1.14 (b) 11.4 (c) 0.0114 (d) 0.114
40. 40.0.57 × 1.9 — where does the decimal point go? (a) 10.83 (b) 0.1083 (c) 0.01083 (d) 1.083

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