Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 847 · 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. 1.0.29 × 0.8 — where does the decimal point go? (a) 0.0232 (b) 0.00232 (c) 0.232 (d) 2.32
2. 2.0.31 × 12 — where does the decimal point go? (a) 37.2 (b) 0.372 (c) 0.0372 (d) 3.72
3. 3.3.3 × 2 — where does the decimal point go? (a) 0.066 (b) 66 (c) 0.66 (d) 6.6
4. 4.0.67 × 0.3 — where does the decimal point go? (a) 2.01 (b) 0.201 (c) 0.0201 (d) 0.00201
5. 5.0.48 × 0.7 — where does the decimal point go? (a) 0.336 (b) 3.36 (c) 0.00336 (d) 0.0336
6. 6.5.5 × 5 — where does the decimal point go? (a) 27.5 (b) 0.275 (c) 275 (d) 2.75
7. 7.0.15 × 7 — where does the decimal point go? (a) 0.0105 (b) 0.105 (c) 1.05 (d) 10.5
8. 8.0.27 × 6 — where does the decimal point go? (a) 1.62 (b) 0.0162 (c) 16.2 (d) 0.162
9. 9.9.4 × 41 — where does the decimal point go? (a) 3854 (b) 3.854 (c) 385.4 (d) 38.54
10. 10.1.8 × 16 — where does the decimal point go? (a) 0.288 (b) 2.88 (c) 28.8 (d) 288
11. 11.7.1 × 43 — where does the decimal point go? (a) 305.3 (b) 3.053 (c) 30.53 (d) 3053
12. 12.6.7 × 4.3 — where does the decimal point go? (a) 2.881 (b) 0.2881 (c) 288.1 (d) 28.81
13. 13.0.57 × 0.8 — where does the decimal point go? (a) 4.56 (b) 0.0456 (c) 0.456 (d) 0.00456
14. 14.0.43 × 8 — where does the decimal point go? (a) 0.344 (b) 34.4 (c) 0.0344 (d) 3.44
15. 15.0.72 × 27 — where does the decimal point go? (a) 194.4 (b) 0.1944 (c) 1.944 (d) 19.44
16. 16.8.8 × 0.3 — where does the decimal point go? (a) 0.0264 (b) 0.264 (c) 2.64 (d) 26.4
17. 17.3.3 × 23 — where does the decimal point go? (a) 7.59 (b) 75.9 (c) 0.759 (d) 759
18. 18.0.57 × 3 — where does the decimal point go? (a) 17.1 (b) 0.171 (c) 0.0171 (d) 1.71
19. 19.8.4 × 0.6 — where does the decimal point go? (a) 0.0504 (b) 50.4 (c) 0.504 (d) 5.04
20. 20.5.7 × 5 — where does the decimal point go? (a) 285 (b) 2.85 (c) 28.5 (d) 0.285
21. 21.0.83 × 9 — where does the decimal point go? (a) 0.0747 (b) 7.47 (c) 74.7 (d) 0.747
22. 22.0.81 × 45 — where does the decimal point go? (a) 0.3645 (b) 3.645 (c) 36.45 (d) 364.5
23. 23.0.77 × 1.5 — where does the decimal point go? (a) 0.1155 (b) 1.155 (c) 11.55 (d) 0.01155
24. 24.0.86 × 2.6 — where does the decimal point go? (a) 22.36 (b) 0.02236 (c) 0.2236 (d) 2.236
25. 25.2.1 × 0.8 — where does the decimal point go? (a) 16.8 (b) 0.168 (c) 0.0168 (d) 1.68
26. 26.0.37 × 3.9 — where does the decimal point go? (a) 14.43 (b) 0.1443 (c) 1.443 (d) 0.01443
27. 27.2.4 × 0.9 — where does the decimal point go? (a) 2.16 (b) 0.216 (c) 21.6 (d) 0.0216
28. 28.1.7 × 21 — where does the decimal point go? (a) 357 (b) 0.357 (c) 35.7 (d) 3.57
29. 29.0.88 × 26 — where does the decimal point go? (a) 22.88 (b) 2.288 (c) 0.2288 (d) 228.8
30. 30.1.7 × 13 — where does the decimal point go? (a) 2.21 (b) 22.1 (c) 221 (d) 0.221
31. 31.7.9 × 0.8 — where does the decimal point go? (a) 0.0632 (b) 0.632 (c) 6.32 (d) 63.2
32. 32.0.31 × 2.4 — where does the decimal point go? (a) 7.44 (b) 0.0744 (c) 0.00744 (d) 0.744
33. 33.0.91 × 0.2 — where does the decimal point go? (a) 0.0182 (b) 1.82 (c) 0.182 (d) 0.00182
34. 34.3.7 × 3.2 — where does the decimal point go? (a) 11.84 (b) 1.184 (c) 0.1184 (d) 118.4
35. 35.1.6 × 4 — where does the decimal point go? (a) 0.64 (b) 6.4 (c) 0.064 (d) 64
36. 36.0.51 × 0.3 — where does the decimal point go? (a) 0.00153 (b) 0.0153 (c) 0.153 (d) 1.53
37. 37.0.26 × 4 — where does the decimal point go? (a) 0.0104 (b) 0.104 (c) 1.04 (d) 10.4
38. 38.0.29 × 8 — where does the decimal point go? (a) 0.232 (b) 0.0232 (c) 2.32 (d) 23.2
39. 39.0.84 × 32 — where does the decimal point go? (a) 26.88 (b) 0.2688 (c) 2.688 (d) 268.8
40. 40.8.6 × 0.2 — where does the decimal point go? (a) 0.0172 (b) 17.2 (c) 0.172 (d) 1.72

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