Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 321 · 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. 1.0.13 × 1.8 — where does the decimal point go? (a) 0.234 (b) 0.0234 (c) 0.00234 (d) 2.34
2. 2.0.33 × 0.6 — where does the decimal point go? (a) 0.198 (b) 0.00198 (c) 0.0198 (d) 1.98
3. 3.9.9 × 0.4 — where does the decimal point go? (a) 0.396 (b) 3.96 (c) 0.0396 (d) 39.6
4. 4.0.36 × 0.7 — where does the decimal point go? (a) 0.0252 (b) 0.00252 (c) 0.252 (d) 2.52
5. 5.0.78 × 33 — where does the decimal point go? (a) 25.74 (b) 2.574 (c) 257.4 (d) 0.2574
6. 6.8.6 × 9 — where does the decimal point go? (a) 77.4 (b) 7.74 (c) 774 (d) 0.774
7. 7.0.53 × 8 — where does the decimal point go? (a) 0.0424 (b) 4.24 (c) 42.4 (d) 0.424
8. 8.0.77 × 2 — where does the decimal point go? (a) 0.154 (b) 1.54 (c) 0.0154 (d) 15.4
9. 9.0.92 × 1.7 — where does the decimal point go? (a) 0.1564 (b) 15.64 (c) 1.564 (d) 0.01564
10. 10.0.74 × 9 — where does the decimal point go? (a) 0.666 (b) 0.0666 (c) 66.6 (d) 6.66
11. 11.0.19 × 1.7 — where does the decimal point go? (a) 0.00323 (b) 0.0323 (c) 0.323 (d) 3.23
12. 12.0.74 × 37 — where does the decimal point go? (a) 27.38 (b) 273.8 (c) 0.2738 (d) 2.738
13. 13.0.63 × 9 — where does the decimal point go? (a) 0.0567 (b) 56.7 (c) 5.67 (d) 0.567
14. 14.0.29 × 3 — where does the decimal point go? (a) 8.7 (b) 0.0087 (c) 0.087 (d) 0.87
15. 15.7.7 × 1.2 — where does the decimal point go? (a) 9.24 (b) 0.0924 (c) 0.924 (d) 92.4
16. 16.0.83 × 0.6 — where does the decimal point go? (a) 4.98 (b) 0.00498 (c) 0.0498 (d) 0.498
17. 17.2.8 × 1.1 — where does the decimal point go? (a) 0.308 (b) 30.8 (c) 3.08 (d) 0.0308
18. 18.0.72 × 0.3 — where does the decimal point go? (a) 0.00216 (b) 2.16 (c) 0.216 (d) 0.0216
19. 19.3.9 × 18 — where does the decimal point go? (a) 7.02 (b) 0.702 (c) 702 (d) 70.2
20. 20.0.78 × 0.4 — where does the decimal point go? (a) 0.00312 (b) 0.0312 (c) 3.12 (d) 0.312
21. 21.3.9 × 36 — where does the decimal point go? (a) 1.404 (b) 14.04 (c) 140.4 (d) 1404
22. 22.4.8 × 4 — where does the decimal point go? (a) 192 (b) 19.2 (c) 0.192 (d) 1.92
23. 23.0.61 × 8 — where does the decimal point go? (a) 4.88 (b) 0.0488 (c) 48.8 (d) 0.488
24. 24.0.76 × 24 — where does the decimal point go? (a) 1.824 (b) 18.24 (c) 0.1824 (d) 182.4
25. 25.9.4 × 7 — where does the decimal point go? (a) 0.658 (b) 6.58 (c) 65.8 (d) 658
26. 26.3.3 × 0.4 — where does the decimal point go? (a) 13.2 (b) 0.132 (c) 0.0132 (d) 1.32
27. 27.0.32 × 0.6 — where does the decimal point go? (a) 1.92 (b) 0.00192 (c) 0.192 (d) 0.0192
28. 28.0.58 × 3 — where does the decimal point go? (a) 1.74 (b) 0.0174 (c) 0.174 (d) 17.4
29. 29.6.3 × 0.3 — where does the decimal point go? (a) 0.0189 (b) 18.9 (c) 1.89 (d) 0.189
30. 30.3.3 × 6 — where does the decimal point go? (a) 1.98 (b) 0.198 (c) 19.8 (d) 198
31. 31.0.72 × 0.8 — where does the decimal point go? (a) 0.576 (b) 5.76 (c) 0.0576 (d) 0.00576
32. 32.0.54 × 18 — where does the decimal point go? (a) 0.0972 (b) 9.72 (c) 97.2 (d) 0.972
33. 33.1.3 × 0.3 — where does the decimal point go? (a) 0.39 (b) 0.0039 (c) 3.9 (d) 0.039
34. 34.4.3 × 3 — where does the decimal point go? (a) 1.29 (b) 12.9 (c) 129 (d) 0.129
35. 35.0.37 × 0.8 — where does the decimal point go? (a) 0.0296 (b) 0.296 (c) 0.00296 (d) 2.96
36. 36.5.3 × 0.9 — where does the decimal point go? (a) 0.477 (b) 4.77 (c) 0.0477 (d) 47.7
37. 37.0.71 × 0.5 — where does the decimal point go? (a) 0.355 (b) 0.00355 (c) 3.55 (d) 0.0355
38. 38.0.27 × 7 — where does the decimal point go? (a) 0.0189 (b) 0.189 (c) 18.9 (d) 1.89
39. 39.0.89 × 1.1 — where does the decimal point go? (a) 0.0979 (b) 0.979 (c) 9.79 (d) 0.00979
40. 40.1.4 × 0.4 — where does the decimal point go? (a) 0.056 (b) 5.6 (c) 0.0056 (d) 0.56

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