Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 193 · 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. 1.8.8 × 14 — where does the decimal point go? (a) 123.2 (b) 12.32 (c) 1232 (d) 1.232
2. 2.9.4 × 0.9 — where does the decimal point go? (a) 0.0846 (b) 84.6 (c) 0.846 (d) 8.46
3. 3.9.3 × 8 — where does the decimal point go? (a) 7.44 (b) 744 (c) 0.744 (d) 74.4
4. 4.8.9 × 0.3 — where does the decimal point go? (a) 2.67 (b) 0.267 (c) 26.7 (d) 0.0267
5. 5.7.5 × 27 — where does the decimal point go? (a) 2025 (b) 20.25 (c) 202.5 (d) 2.025
6. 6.4.3 × 3.2 — where does the decimal point go? (a) 13.76 (b) 137.6 (c) 1.376 (d) 0.1376
7. 7.0.79 × 0.8 — where does the decimal point go? (a) 0.632 (b) 0.0632 (c) 0.00632 (d) 6.32
8. 8.8.2 × 8 — where does the decimal point go? (a) 65.6 (b) 6.56 (c) 656 (d) 0.656
9. 9.0.59 × 0.8 — where does the decimal point go? (a) 4.72 (b) 0.00472 (c) 0.0472 (d) 0.472
10. 10.1.7 × 13 — where does the decimal point go? (a) 22.1 (b) 0.221 (c) 2.21 (d) 221
11. 11.0.19 × 0.9 — where does the decimal point go? (a) 0.171 (b) 1.71 (c) 0.0171 (d) 0.00171
12. 12.0.58 × 4.1 — where does the decimal point go? (a) 0.02378 (b) 2.378 (c) 0.2378 (d) 23.78
13. 13.9.6 × 6 — where does the decimal point go? (a) 576 (b) 0.576 (c) 5.76 (d) 57.6
14. 14.0.41 × 3.4 — where does the decimal point go? (a) 1.394 (b) 0.01394 (c) 0.1394 (d) 13.94
15. 15.0.54 × 2 — where does the decimal point go? (a) 0.108 (b) 1.08 (c) 10.8 (d) 0.0108
16. 16.0.82 × 0.8 — where does the decimal point go? (a) 0.0656 (b) 0.00656 (c) 6.56 (d) 0.656
17. 17.5.8 × 14 — where does the decimal point go? (a) 812 (b) 8.12 (c) 81.2 (d) 0.812
18. 18.0.26 × 6 — where does the decimal point go? (a) 0.0156 (b) 1.56 (c) 0.156 (d) 15.6
19. 19.9.8 × 2.3 — where does the decimal point go? (a) 22.54 (b) 225.4 (c) 2.254 (d) 0.2254
20. 20.5.7 × 4 — where does the decimal point go? (a) 0.228 (b) 228 (c) 2.28 (d) 22.8
21. 21.0.88 × 2 — where does the decimal point go? (a) 1.76 (b) 17.6 (c) 0.0176 (d) 0.176
22. 22.9.7 × 1.9 — where does the decimal point go? (a) 18.43 (b) 184.3 (c) 1.843 (d) 0.1843
23. 23.0.29 × 3 — where does the decimal point go? (a) 8.7 (b) 0.87 (c) 0.087 (d) 0.0087
24. 24.0.38 × 2.1 — where does the decimal point go? (a) 7.98 (b) 0.00798 (c) 0.0798 (d) 0.798
25. 25.0.23 × 4 — where does the decimal point go? (a) 0.092 (b) 9.2 (c) 0.0092 (d) 0.92
26. 26.0.19 × 8 — where does the decimal point go? (a) 0.0152 (b) 1.52 (c) 0.152 (d) 15.2
27. 27.0.56 × 9 — where does the decimal point go? (a) 0.504 (b) 5.04 (c) 50.4 (d) 0.0504
28. 28.3.2 × 0.6 — where does the decimal point go? (a) 0.0192 (b) 0.192 (c) 1.92 (d) 19.2
29. 29.0.28 × 4.4 — where does the decimal point go? (a) 12.32 (b) 0.1232 (c) 1.232 (d) 0.01232
30. 30.0.52 × 4 — where does the decimal point go? (a) 0.208 (b) 20.8 (c) 2.08 (d) 0.0208
31. 31.4.4 × 38 — where does the decimal point go? (a) 16.72 (b) 167.2 (c) 1672 (d) 1.672
32. 32.0.36 × 8 — where does the decimal point go? (a) 2.88 (b) 0.288 (c) 0.0288 (d) 28.8
33. 33.0.73 × 1.9 — where does the decimal point go? (a) 0.1387 (b) 1.387 (c) 0.01387 (d) 13.87
34. 34.7.4 × 13 — where does the decimal point go? (a) 96.2 (b) 9.62 (c) 962 (d) 0.962
35. 35.0.98 × 9 — where does the decimal point go? (a) 88.2 (b) 0.882 (c) 0.0882 (d) 8.82
36. 36.0.78 × 3.2 — where does the decimal point go? (a) 2.496 (b) 0.02496 (c) 0.2496 (d) 24.96
37. 37.5.9 × 23 — where does the decimal point go? (a) 135.7 (b) 13.57 (c) 1.357 (d) 1357
38. 38.0.26 × 1.9 — where does the decimal point go? (a) 4.94 (b) 0.0494 (c) 0.494 (d) 0.00494
39. 39.5.8 × 2.9 — where does the decimal point go? (a) 1.682 (b) 168.2 (c) 0.1682 (d) 16.82
40. 40.0.18 × 4 — where does the decimal point go? (a) 0.72 (b) 0.072 (c) 0.0072 (d) 7.2

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