Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 147 · 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. 1.0.59 × 0.3 — where does the decimal point go? (a) 1.77 (b) 0.00177 (c) 0.0177 (d) 0.177
2. 2.0.72 × 34 — where does the decimal point go? (a) 24.48 (b) 244.8 (c) 2.448 (d) 0.2448
3. 3.5.1 × 0.3 — where does the decimal point go? (a) 0.0153 (b) 1.53 (c) 15.3 (d) 0.153
4. 4.0.44 × 7 — where does the decimal point go? (a) 0.308 (b) 30.8 (c) 0.0308 (d) 3.08
5. 5.0.26 × 0.3 — where does the decimal point go? (a) 0.78 (b) 0.0078 (c) 0.00078 (d) 0.078
6. 6.8.6 × 0.9 — where does the decimal point go? (a) 0.774 (b) 7.74 (c) 0.0774 (d) 77.4
7. 7.5.3 × 1.1 — where does the decimal point go? (a) 0.0583 (b) 5.83 (c) 58.3 (d) 0.583
8. 8.0.46 × 38 — where does the decimal point go? (a) 17.48 (b) 174.8 (c) 0.1748 (d) 1.748
9. 9.1.4 × 4.7 — where does the decimal point go? (a) 0.658 (b) 6.58 (c) 65.8 (d) 0.0658
10. 10.9.1 × 0.8 — where does the decimal point go? (a) 7.28 (b) 72.8 (c) 0.728 (d) 0.0728
11. 11.0.14 × 2 — where does the decimal point go? (a) 0.28 (b) 0.0028 (c) 0.028 (d) 2.8
12. 12.0.32 × 0.4 — where does the decimal point go? (a) 1.28 (b) 0.00128 (c) 0.128 (d) 0.0128
13. 13.6.7 × 0.2 — where does the decimal point go? (a) 1.34 (b) 0.0134 (c) 13.4 (d) 0.134
14. 14.0.56 × 46 — where does the decimal point go? (a) 2.576 (b) 257.6 (c) 25.76 (d) 0.2576
15. 15.0.34 × 0.8 — where does the decimal point go? (a) 2.72 (b) 0.00272 (c) 0.272 (d) 0.0272
16. 16.0.22 × 4 — where does the decimal point go? (a) 0.088 (b) 0.0088 (c) 0.88 (d) 8.8
17. 17.0.27 × 2.4 — where does the decimal point go? (a) 6.48 (b) 0.648 (c) 0.0648 (d) 0.00648
18. 18.0.18 × 0.3 — where does the decimal point go? (a) 0.00054 (b) 0.054 (c) 0.0054 (d) 0.54
19. 19.3.3 × 9 — where does the decimal point go? (a) 0.297 (b) 297 (c) 2.97 (d) 29.7
20. 20.1.4 × 0.9 — where does the decimal point go? (a) 1.26 (b) 0.0126 (c) 0.126 (d) 12.6
21. 21.0.86 × 0.9 — where does the decimal point go? (a) 0.00774 (b) 0.774 (c) 0.0774 (d) 7.74
22. 22.2.9 × 0.2 — where does the decimal point go? (a) 0.0058 (b) 0.58 (c) 5.8 (d) 0.058
23. 23.9.8 × 9 — where does the decimal point go? (a) 882 (b) 88.2 (c) 0.882 (d) 8.82
24. 24.0.72 × 11 — where does the decimal point go? (a) 7.92 (b) 79.2 (c) 0.0792 (d) 0.792
25. 25.9.4 × 2.6 — where does the decimal point go? (a) 24.44 (b) 0.2444 (c) 2.444 (d) 244.4
26. 26.7.9 × 0.7 — where does the decimal point go? (a) 0.553 (b) 0.0553 (c) 5.53 (d) 55.3
27. 27.7.5 × 45 — where does the decimal point go? (a) 3375 (b) 33.75 (c) 337.5 (d) 3.375
28. 28.1.9 × 3 — where does the decimal point go? (a) 0.57 (b) 0.057 (c) 57 (d) 5.7
29. 29.9.4 × 47 — where does the decimal point go? (a) 44.18 (b) 4418 (c) 4.418 (d) 441.8
30. 30.0.51 × 1.3 — where does the decimal point go? (a) 0.00663 (b) 0.0663 (c) 0.663 (d) 6.63
31. 31.4.1 × 0.3 — where does the decimal point go? (a) 0.0123 (b) 1.23 (c) 12.3 (d) 0.123
32. 32.0.59 × 2 — where does the decimal point go? (a) 0.0118 (b) 0.118 (c) 1.18 (d) 11.8
33. 33.0.19 × 6 — where does the decimal point go? (a) 0.0114 (b) 0.114 (c) 1.14 (d) 11.4
34. 34.2.1 × 0.9 — where does the decimal point go? (a) 1.89 (b) 18.9 (c) 0.189 (d) 0.0189
35. 35.0.37 × 0.6 — where does the decimal point go? (a) 0.222 (b) 2.22 (c) 0.0222 (d) 0.00222
36. 36.5.2 × 7 — where does the decimal point go? (a) 364 (b) 3.64 (c) 0.364 (d) 36.4
37. 37.0.43 × 1.5 — where does the decimal point go? (a) 0.645 (b) 0.00645 (c) 6.45 (d) 0.0645
38. 38.3.9 × 0.5 — where does the decimal point go? (a) 0.0195 (b) 19.5 (c) 0.195 (d) 1.95
39. 39.2.3 × 27 — where does the decimal point go? (a) 621 (b) 0.621 (c) 62.1 (d) 6.21
40. 40.0.43 × 37 — where does the decimal point go? (a) 1.591 (b) 15.91 (c) 0.1591 (d) 159.1

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