Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 495 · 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. 1.0.37 × 13 — where does the decimal point go? (a) 48.1 (b) 0.481 (c) 4.81 (d) 0.0481
2. 2.0.54 × 12 — where does the decimal point go? (a) 0.648 (b) 64.8 (c) 6.48 (d) 0.0648
3. 3.0.29 × 0.5 — where does the decimal point go? (a) 0.145 (b) 0.00145 (c) 1.45 (d) 0.0145
4. 4.5.4 × 0.7 — where does the decimal point go? (a) 0.0378 (b) 3.78 (c) 37.8 (d) 0.378
5. 5.3.8 × 1.4 — where does the decimal point go? (a) 0.0532 (b) 0.532 (c) 5.32 (d) 53.2
6. 6.9.4 × 3 — where does the decimal point go? (a) 282 (b) 2.82 (c) 28.2 (d) 0.282
7. 7.0.63 × 29 — where does the decimal point go? (a) 0.1827 (b) 18.27 (c) 182.7 (d) 1.827
8. 8.9.2 × 8 — where does the decimal point go? (a) 0.736 (b) 7.36 (c) 736 (d) 73.6
9. 9.0.41 × 9 — where does the decimal point go? (a) 3.69 (b) 0.369 (c) 0.0369 (d) 36.9
10. 10.0.31 × 3 — where does the decimal point go? (a) 0.0093 (b) 0.093 (c) 0.93 (d) 9.3
11. 11.6.9 × 0.3 — where does the decimal point go? (a) 0.0207 (b) 0.207 (c) 20.7 (d) 2.07
12. 12.0.95 × 0.3 — where does the decimal point go? (a) 2.85 (b) 0.00285 (c) 0.285 (d) 0.0285
13. 13.1.4 × 0.4 — where does the decimal point go? (a) 0.056 (b) 5.6 (c) 0.56 (d) 0.0056
14. 14.5.8 × 0.9 — where does the decimal point go? (a) 0.0522 (b) 0.522 (c) 5.22 (d) 52.2
15. 15.8.4 × 8 — where does the decimal point go? (a) 672 (b) 67.2 (c) 6.72 (d) 0.672
16. 16.5.9 × 0.2 — where does the decimal point go? (a) 0.0118 (b) 0.118 (c) 11.8 (d) 1.18
17. 17.0.83 × 48 — where does the decimal point go? (a) 398.4 (b) 39.84 (c) 0.3984 (d) 3.984
18. 18.0.23 × 0.4 — where does the decimal point go? (a) 0.92 (b) 0.092 (c) 0.00092 (d) 0.0092
19. 19.0.12 × 1.7 — where does the decimal point go? (a) 0.00204 (b) 0.0204 (c) 0.204 (d) 2.04
20. 20.5.6 × 6 — where does the decimal point go? (a) 336 (b) 3.36 (c) 33.6 (d) 0.336
21. 21.2.9 × 3.1 — where does the decimal point go? (a) 0.899 (b) 0.0899 (c) 8.99 (d) 89.9
22. 22.6.4 × 0.9 — where does the decimal point go? (a) 5.76 (b) 57.6 (c) 0.576 (d) 0.0576
23. 23.0.47 × 3 — where does the decimal point go? (a) 14.1 (b) 0.141 (c) 0.0141 (d) 1.41
24. 24.5.1 × 2.4 — where does the decimal point go? (a) 1.224 (b) 122.4 (c) 0.1224 (d) 12.24
25. 25.3.2 × 39 — where does the decimal point go? (a) 1.248 (b) 1248 (c) 124.8 (d) 12.48
26. 26.6.8 × 0.2 — where does the decimal point go? (a) 0.136 (b) 0.0136 (c) 13.6 (d) 1.36
27. 27.0.38 × 0.3 — where does the decimal point go? (a) 1.14 (b) 0.114 (c) 0.0114 (d) 0.00114
28. 28.9.9 × 4 — where does the decimal point go? (a) 0.396 (b) 396 (c) 39.6 (d) 3.96
29. 29.0.84 × 26 — where does the decimal point go? (a) 0.2184 (b) 2.184 (c) 21.84 (d) 218.4
30. 30.7.4 × 24 — where does the decimal point go? (a) 17.76 (b) 1776 (c) 177.6 (d) 1.776
31. 31.5.9 × 4.4 — where does the decimal point go? (a) 259.6 (b) 2.596 (c) 0.2596 (d) 25.96
32. 32.0.62 × 18 — where does the decimal point go? (a) 0.1116 (b) 111.6 (c) 11.16 (d) 1.116
33. 33.9.7 × 2.7 — where does the decimal point go? (a) 261.9 (b) 26.19 (c) 0.2619 (d) 2.619
34. 34.6.7 × 19 — where does the decimal point go? (a) 127.3 (b) 12.73 (c) 1.273 (d) 1273
35. 35.0.24 × 0.2 — where does the decimal point go? (a) 0.0048 (b) 0.48 (c) 0.00048 (d) 0.048
36. 36.2.8 × 4.4 — where does the decimal point go? (a) 123.2 (b) 12.32 (c) 0.1232 (d) 1.232
37. 37.0.65 × 1.3 — where does the decimal point go? (a) 8.45 (b) 0.0845 (c) 0.845 (d) 0.00845
38. 38.0.81 × 0.4 — where does the decimal point go? (a) 3.24 (b) 0.0324 (c) 0.00324 (d) 0.324
39. 39.0.81 × 9 — where does the decimal point go? (a) 0.729 (b) 72.9 (c) 7.29 (d) 0.0729
40. 40.3.5 × 0.5 — where does the decimal point go? (a) 0.0175 (b) 0.175 (c) 17.5 (d) 1.75

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