Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 661 · 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. 1.2.3 × 37 — where does the decimal point go? (a) 851 (b) 0.851 (c) 85.1 (d) 8.51
2. 2.2.9 × 8 — where does the decimal point go? (a) 23.2 (b) 232 (c) 0.232 (d) 2.32
3. 3.0.71 × 0.8 — where does the decimal point go? (a) 0.00568 (b) 0.0568 (c) 5.68 (d) 0.568
4. 4.2.6 × 3.3 — where does the decimal point go? (a) 85.8 (b) 8.58 (c) 0.0858 (d) 0.858
5. 5.7.5 × 43 — where does the decimal point go? (a) 32.25 (b) 322.5 (c) 3.225 (d) 3225
6. 6.5.4 × 3 — where does the decimal point go? (a) 1.62 (b) 162 (c) 16.2 (d) 0.162
7. 7.0.56 × 9 — where does the decimal point go? (a) 0.0504 (b) 5.04 (c) 0.504 (d) 50.4
8. 8.0.39 × 4.6 — where does the decimal point go? (a) 0.01794 (b) 1.794 (c) 17.94 (d) 0.1794
9. 9.0.23 × 0.4 — where does the decimal point go? (a) 0.00092 (b) 0.92 (c) 0.092 (d) 0.0092
10. 10.3.1 × 0.9 — where does the decimal point go? (a) 0.0279 (b) 0.279 (c) 27.9 (d) 2.79
11. 11.0.53 × 24 — where does the decimal point go? (a) 0.1272 (b) 1.272 (c) 127.2 (d) 12.72
12. 12.0.18 × 49 — where does the decimal point go? (a) 0.0882 (b) 88.2 (c) 8.82 (d) 0.882
13. 13.0.78 × 0.7 — where does the decimal point go? (a) 0.546 (b) 0.0546 (c) 0.00546 (d) 5.46
14. 14.0.33 × 41 — where does the decimal point go? (a) 13.53 (b) 0.1353 (c) 1.353 (d) 135.3
15. 15.0.43 × 2 — where does the decimal point go? (a) 0.0086 (b) 0.86 (c) 0.086 (d) 8.6
16. 16.1.8 × 16 — where does the decimal point go? (a) 2.88 (b) 28.8 (c) 0.288 (d) 288
17. 17.0.55 × 3 — where does the decimal point go? (a) 16.5 (b) 0.0165 (c) 1.65 (d) 0.165
18. 18.6.4 × 0.4 — where does the decimal point go? (a) 2.56 (b) 0.256 (c) 0.0256 (d) 25.6
19. 19.0.21 × 1.2 — where does the decimal point go? (a) 0.0252 (b) 0.00252 (c) 2.52 (d) 0.252
20. 20.2.8 × 3.6 — where does the decimal point go? (a) 1.008 (b) 0.1008 (c) 10.08 (d) 100.8
21. 21.0.78 × 0.6 — where does the decimal point go? (a) 0.0468 (b) 0.00468 (c) 4.68 (d) 0.468
22. 22.0.44 × 3 — where does the decimal point go? (a) 13.2 (b) 1.32 (c) 0.132 (d) 0.0132
23. 23.9.9 × 0.6 — where does the decimal point go? (a) 0.0594 (b) 0.594 (c) 5.94 (d) 59.4
24. 24.2.6 × 2 — where does the decimal point go? (a) 0.52 (b) 5.2 (c) 52 (d) 0.052
25. 25.0.17 × 3.2 — where does the decimal point go? (a) 5.44 (b) 0.544 (c) 0.00544 (d) 0.0544
26. 26.1.6 × 2.1 — where does the decimal point go? (a) 0.336 (b) 3.36 (c) 33.6 (d) 0.0336
27. 27.0.66 × 0.2 — where does the decimal point go? (a) 0.0132 (b) 1.32 (c) 0.00132 (d) 0.132
28. 28.0.23 × 0.2 — where does the decimal point go? (a) 0.0046 (b) 0.046 (c) 0.00046 (d) 0.46
29. 29.0.72 × 6 — where does the decimal point go? (a) 4.32 (b) 43.2 (c) 0.432 (d) 0.0432
30. 30.8.5 × 39 — where does the decimal point go? (a) 33.15 (b) 3.315 (c) 3315 (d) 331.5
31. 31.4.8 × 37 — where does the decimal point go? (a) 1.776 (b) 1776 (c) 177.6 (d) 17.76
32. 32.0.81 × 2.5 — where does the decimal point go? (a) 0.02025 (b) 0.2025 (c) 2.025 (d) 20.25
33. 33.0.88 × 0.2 — where does the decimal point go? (a) 0.176 (b) 1.76 (c) 0.0176 (d) 0.00176
34. 34.9.7 × 39 — where does the decimal point go? (a) 3.783 (b) 378.3 (c) 37.83 (d) 3783
35. 35.3.4 × 2.6 — where does the decimal point go? (a) 8.84 (b) 88.4 (c) 0.884 (d) 0.0884
36. 36.0.26 × 0.6 — where does the decimal point go? (a) 0.156 (b) 1.56 (c) 0.00156 (d) 0.0156
37. 37.3.2 × 0.4 — where does the decimal point go? (a) 1.28 (b) 12.8 (c) 0.0128 (d) 0.128
38. 38.0.77 × 4.6 — where does the decimal point go? (a) 35.42 (b) 0.3542 (c) 0.03542 (d) 3.542
39. 39.0.56 × 2 — where does the decimal point go? (a) 0.112 (b) 11.2 (c) 1.12 (d) 0.0112
40. 40.6.3 × 3.4 — where does the decimal point go? (a) 2.142 (b) 214.2 (c) 21.42 (d) 0.2142

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