Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 619 · 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. 1.0.55 × 2.9 — where does the decimal point go? (a) 0.1595 (b) 0.01595 (c) 15.95 (d) 1.595
2. 2.0.78 × 0.6 — where does the decimal point go? (a) 0.468 (b) 0.00468 (c) 4.68 (d) 0.0468
3. 3.5.6 × 0.6 — where does the decimal point go? (a) 3.36 (b) 33.6 (c) 0.0336 (d) 0.336
4. 4.7.4 × 1.4 — where does the decimal point go? (a) 0.1036 (b) 103.6 (c) 1.036 (d) 10.36
5. 5.3.7 × 29 — where does the decimal point go? (a) 10.73 (b) 1.073 (c) 107.3 (d) 1073
6. 6.0.85 × 0.3 — where does the decimal point go? (a) 0.255 (b) 0.0255 (c) 2.55 (d) 0.00255
7. 7.1.8 × 3 — where does the decimal point go? (a) 0.54 (b) 5.4 (c) 54 (d) 0.054
8. 8.0.82 × 44 — where does the decimal point go? (a) 0.3608 (b) 360.8 (c) 3.608 (d) 36.08
9. 9.0.95 × 49 — where does the decimal point go? (a) 0.4655 (b) 465.5 (c) 46.55 (d) 4.655
10. 10.0.58 × 0.9 — where does the decimal point go? (a) 0.0522 (b) 5.22 (c) 0.522 (d) 0.00522
11. 11.0.78 × 38 — where does the decimal point go? (a) 29.64 (b) 0.2964 (c) 296.4 (d) 2.964
12. 12.0.87 × 3 — where does the decimal point go? (a) 0.261 (b) 0.0261 (c) 2.61 (d) 26.1
13. 13.0.53 × 3 — where does the decimal point go? (a) 0.159 (b) 0.0159 (c) 15.9 (d) 1.59
14. 14.1.2 × 1.1 — where does the decimal point go? (a) 0.132 (b) 1.32 (c) 13.2 (d) 0.0132
15. 15.0.54 × 0.2 — where does the decimal point go? (a) 0.108 (b) 1.08 (c) 0.0108 (d) 0.00108
16. 16.0.34 × 4 — where does the decimal point go? (a) 0.0136 (b) 0.136 (c) 13.6 (d) 1.36
17. 17.0.82 × 12 — where does the decimal point go? (a) 0.984 (b) 9.84 (c) 0.0984 (d) 98.4
18. 18.3.7 × 2 — where does the decimal point go? (a) 74 (b) 0.74 (c) 0.074 (d) 7.4
19. 19.7.8 × 7 — where does the decimal point go? (a) 54.6 (b) 0.546 (c) 5.46 (d) 546
20. 20.3.1 × 0.3 — where does the decimal point go? (a) 9.3 (b) 0.93 (c) 0.0093 (d) 0.093
21. 21.0.29 × 42 — where does the decimal point go? (a) 0.1218 (b) 12.18 (c) 121.8 (d) 1.218
22. 22.0.81 × 0.2 — where does the decimal point go? (a) 0.00162 (b) 0.0162 (c) 0.162 (d) 1.62
23. 23.4.7 × 4.2 — where does the decimal point go? (a) 197.4 (b) 19.74 (c) 1.974 (d) 0.1974
24. 24.1.7 × 21 — where does the decimal point go? (a) 3.57 (b) 357 (c) 35.7 (d) 0.357
25. 25.8.8 × 0.2 — where does the decimal point go? (a) 1.76 (b) 17.6 (c) 0.176 (d) 0.0176
26. 26.0.69 × 9 — where does the decimal point go? (a) 0.0621 (b) 6.21 (c) 62.1 (d) 0.621
27. 27.3.4 × 0.6 — where does the decimal point go? (a) 0.204 (b) 2.04 (c) 20.4 (d) 0.0204
28. 28.0.59 × 2 — where does the decimal point go? (a) 1.18 (b) 0.0118 (c) 0.118 (d) 11.8
29. 29.0.68 × 34 — where does the decimal point go? (a) 2.312 (b) 231.2 (c) 0.2312 (d) 23.12
30. 30.0.71 × 2.6 — where does the decimal point go? (a) 1.846 (b) 0.01846 (c) 0.1846 (d) 18.46
31. 31.9.8 × 2 — where does the decimal point go? (a) 196 (b) 19.6 (c) 1.96 (d) 0.196
32. 32.0.49 × 7 — where does the decimal point go? (a) 34.3 (b) 3.43 (c) 0.0343 (d) 0.343
33. 33.0.81 × 9 — where does the decimal point go? (a) 0.729 (b) 7.29 (c) 0.0729 (d) 72.9
34. 34.5.2 × 9 — where does the decimal point go? (a) 0.468 (b) 46.8 (c) 4.68 (d) 468
35. 35.4.2 × 0.7 — where does the decimal point go? (a) 29.4 (b) 0.0294 (c) 0.294 (d) 2.94
36. 36.0.16 × 14 — where does the decimal point go? (a) 0.224 (b) 0.0224 (c) 22.4 (d) 2.24
37. 37.0.19 × 3.3 — where does the decimal point go? (a) 6.27 (b) 0.0627 (c) 0.00627 (d) 0.627
38. 38.3.8 × 0.4 — where does the decimal point go? (a) 0.0152 (b) 1.52 (c) 0.152 (d) 15.2
39. 39.0.62 × 0.9 — where does the decimal point go? (a) 0.0558 (b) 0.00558 (c) 0.558 (d) 5.58
40. 40.0.71 × 3 — where does the decimal point go? (a) 0.213 (b) 2.13 (c) 21.3 (d) 0.0213

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