Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 59 · 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. 1.1.8 × 44 — where does the decimal point go? (a) 79.2 (b) 7.92 (c) 792 (d) 0.792
2. 2.0.21 × 0.8 — where does the decimal point go? (a) 0.168 (b) 0.00168 (c) 1.68 (d) 0.0168
3. 3.6.7 × 0.7 — where does the decimal point go? (a) 0.469 (b) 0.0469 (c) 4.69 (d) 46.9
4. 4.0.53 × 2.4 — where does the decimal point go? (a) 0.1272 (b) 12.72 (c) 0.01272 (d) 1.272
5. 5.3.3 × 4 — where does the decimal point go? (a) 1.32 (b) 13.2 (c) 132 (d) 0.132
6. 6.0.41 × 1.2 — where does the decimal point go? (a) 0.00492 (b) 0.0492 (c) 0.492 (d) 4.92
7. 7.1.9 × 0.3 — where does the decimal point go? (a) 0.0057 (b) 0.57 (c) 5.7 (d) 0.057
8. 8.1.3 × 0.4 — where does the decimal point go? (a) 0.0052 (b) 0.052 (c) 0.52 (d) 5.2
9. 9.1.7 × 7 — where does the decimal point go? (a) 11.9 (b) 119 (c) 0.119 (d) 1.19
10. 10.6.6 × 0.4 — where does the decimal point go? (a) 26.4 (b) 0.264 (c) 0.0264 (d) 2.64
11. 11.6.9 × 39 — where does the decimal point go? (a) 26.91 (b) 2.691 (c) 269.1 (d) 2691
12. 12.0.96 × 19 — where does the decimal point go? (a) 0.1824 (b) 1.824 (c) 18.24 (d) 182.4
13. 13.0.69 × 23 — where does the decimal point go? (a) 0.1587 (b) 158.7 (c) 15.87 (d) 1.587
14. 14.3.4 × 3.2 — where does the decimal point go? (a) 108.8 (b) 0.1088 (c) 10.88 (d) 1.088
15. 15.4.9 × 2 — where does the decimal point go? (a) 0.98 (b) 9.8 (c) 98 (d) 0.098
16. 16.8.8 × 0.2 — where does the decimal point go? (a) 0.0176 (b) 0.176 (c) 17.6 (d) 1.76
17. 17.0.36 × 0.6 — where does the decimal point go? (a) 2.16 (b) 0.0216 (c) 0.00216 (d) 0.216
18. 18.0.19 × 9 — where does the decimal point go? (a) 1.71 (b) 0.0171 (c) 17.1 (d) 0.171
19. 19.0.12 × 3.1 — where does the decimal point go? (a) 0.372 (b) 0.0372 (c) 3.72 (d) 0.00372
20. 20.3.2 × 0.4 — where does the decimal point go? (a) 0.0128 (b) 0.128 (c) 1.28 (d) 12.8
21. 21.0.12 × 0.3 — where does the decimal point go? (a) 0.0036 (b) 0.036 (c) 0.00036 (d) 0.36
22. 22.3.5 × 33 — where does the decimal point go? (a) 11.55 (b) 1155 (c) 1.155 (d) 115.5
23. 23.0.57 × 2.1 — where does the decimal point go? (a) 11.97 (b) 0.1197 (c) 0.01197 (d) 1.197
24. 24.0.81 × 3.7 — where does the decimal point go? (a) 29.97 (b) 0.2997 (c) 2.997 (d) 0.02997
25. 25.2.7 × 2.1 — where does the decimal point go? (a) 5.67 (b) 0.567 (c) 56.7 (d) 0.0567
26. 26.6.7 × 0.8 — where does the decimal point go? (a) 5.36 (b) 0.536 (c) 0.0536 (d) 53.6
27. 27.0.79 × 3.6 — where does the decimal point go? (a) 0.2844 (b) 0.02844 (c) 28.44 (d) 2.844
28. 28.0.52 × 8 — where does the decimal point go? (a) 0.416 (b) 41.6 (c) 4.16 (d) 0.0416
29. 29.0.24 × 16 — where does the decimal point go? (a) 0.0384 (b) 0.384 (c) 38.4 (d) 3.84
30. 30.4.3 × 0.8 — where does the decimal point go? (a) 3.44 (b) 0.0344 (c) 34.4 (d) 0.344
31. 31.0.22 × 13 — where does the decimal point go? (a) 0.286 (b) 0.0286 (c) 28.6 (d) 2.86
32. 32.0.74 × 4.3 — where does the decimal point go? (a) 0.3182 (b) 0.03182 (c) 3.182 (d) 31.82
33. 33.5.4 × 2 — where does the decimal point go? (a) 1.08 (b) 108 (c) 10.8 (d) 0.108
34. 34.0.69 × 26 — where does the decimal point go? (a) 179.4 (b) 0.1794 (c) 17.94 (d) 1.794
35. 35.0.76 × 19 — where does the decimal point go? (a) 144.4 (b) 1.444 (c) 0.1444 (d) 14.44
36. 36.0.13 × 2 — where does the decimal point go? (a) 0.0026 (b) 0.26 (c) 0.026 (d) 2.6
37. 37.3.7 × 2 — where does the decimal point go? (a) 7.4 (b) 74 (c) 0.074 (d) 0.74
38. 38.7.2 × 2.7 — where does the decimal point go? (a) 194.4 (b) 19.44 (c) 0.1944 (d) 1.944
39. 39.7.9 × 26 — where does the decimal point go? (a) 20.54 (b) 2054 (c) 2.054 (d) 205.4
40. 40.7.9 × 0.2 — where does the decimal point go? (a) 15.8 (b) 0.158 (c) 1.58 (d) 0.0158

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