Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 925 · 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. 1.0.58 × 2 — where does the decimal point go? (a) 0.0116 (b) 11.6 (c) 1.16 (d) 0.116
2. 2.9.6 × 3 — where does the decimal point go? (a) 0.288 (b) 288 (c) 2.88 (d) 28.8
3. 3.6.8 × 0.3 — where does the decimal point go? (a) 2.04 (b) 0.0204 (c) 0.204 (d) 20.4
4. 4.9.4 × 24 — where does the decimal point go? (a) 2256 (b) 22.56 (c) 2.256 (d) 225.6
5. 5.2.9 × 14 — where does the decimal point go? (a) 40.6 (b) 4.06 (c) 0.406 (d) 406
6. 6.8.3 × 2 — where does the decimal point go? (a) 166 (b) 16.6 (c) 1.66 (d) 0.166
7. 7.5.8 × 2.7 — where does the decimal point go? (a) 0.1566 (b) 1.566 (c) 15.66 (d) 156.6
8. 8.5.9 × 4.5 — where does the decimal point go? (a) 26.55 (b) 265.5 (c) 2.655 (d) 0.2655
9. 9.6.2 × 6 — where does the decimal point go? (a) 3.72 (b) 372 (c) 0.372 (d) 37.2
10. 10.4.7 × 3 — where does the decimal point go? (a) 141 (b) 14.1 (c) 0.141 (d) 1.41
11. 11.0.29 × 21 — where does the decimal point go? (a) 0.609 (b) 0.0609 (c) 6.09 (d) 60.9
12. 12.2.9 × 2.4 — where does the decimal point go? (a) 0.0696 (b) 6.96 (c) 69.6 (d) 0.696
13. 13.6.8 × 0.4 — where does the decimal point go? (a) 0.272 (b) 2.72 (c) 0.0272 (d) 27.2
14. 14.3.4 × 8 — where does the decimal point go? (a) 272 (b) 0.272 (c) 27.2 (d) 2.72
15. 15.0.22 × 3 — where does the decimal point go? (a) 0.0066 (b) 0.066 (c) 0.66 (d) 6.6
16. 16.0.83 × 0.8 — where does the decimal point go? (a) 0.0664 (b) 6.64 (c) 0.664 (d) 0.00664
17. 17.4.6 × 0.7 — where does the decimal point go? (a) 3.22 (b) 0.322 (c) 0.0322 (d) 32.2
18. 18.0.68 × 38 — where does the decimal point go? (a) 25.84 (b) 0.2584 (c) 2.584 (d) 258.4
19. 19.2.7 × 28 — where does the decimal point go? (a) 0.756 (b) 756 (c) 7.56 (d) 75.6
20. 20.0.12 × 0.9 — where does the decimal point go? (a) 0.0108 (b) 1.08 (c) 0.108 (d) 0.00108
21. 21.0.22 × 0.9 — where does the decimal point go? (a) 0.0198 (b) 0.198 (c) 1.98 (d) 0.00198
22. 22.0.62 × 4.4 — where does the decimal point go? (a) 0.02728 (b) 2.728 (c) 0.2728 (d) 27.28
23. 23.1.6 × 43 — where does the decimal point go? (a) 68.8 (b) 0.688 (c) 6.88 (d) 688
24. 24.0.78 × 0.2 — where does the decimal point go? (a) 0.00156 (b) 1.56 (c) 0.156 (d) 0.0156
25. 25.0.14 × 0.9 — where does the decimal point go? (a) 0.0126 (b) 0.00126 (c) 1.26 (d) 0.126
26. 26.0.91 × 0.4 — where does the decimal point go? (a) 3.64 (b) 0.0364 (c) 0.00364 (d) 0.364
27. 27.0.98 × 41 — where does the decimal point go? (a) 401.8 (b) 0.4018 (c) 4.018 (d) 40.18
28. 28.4.3 × 0.3 — where does the decimal point go? (a) 0.0129 (b) 0.129 (c) 1.29 (d) 12.9
29. 29.3.2 × 8 — where does the decimal point go? (a) 0.256 (b) 256 (c) 25.6 (d) 2.56
30. 30.0.36 × 6 — where does the decimal point go? (a) 0.0216 (b) 0.216 (c) 2.16 (d) 21.6
31. 31.0.23 × 16 — where does the decimal point go? (a) 3.68 (b) 36.8 (c) 0.0368 (d) 0.368
32. 32.5.1 × 29 — where does the decimal point go? (a) 147.9 (b) 14.79 (c) 1479 (d) 1.479
33. 33.0.31 × 0.9 — where does the decimal point go? (a) 0.00279 (b) 0.0279 (c) 2.79 (d) 0.279
34. 34.0.99 × 0.9 — where does the decimal point go? (a) 0.891 (b) 0.00891 (c) 0.0891 (d) 8.91
35. 35.5.8 × 0.2 — where does the decimal point go? (a) 0.116 (b) 0.0116 (c) 1.16 (d) 11.6
36. 36.0.53 × 6 — where does the decimal point go? (a) 0.0318 (b) 31.8 (c) 0.318 (d) 3.18
37. 37.1.3 × 27 — where does the decimal point go? (a) 3.51 (b) 351 (c) 0.351 (d) 35.1
38. 38.5.6 × 0.6 — where does the decimal point go? (a) 33.6 (b) 3.36 (c) 0.0336 (d) 0.336
39. 39.0.93 × 0.3 — where does the decimal point go? (a) 0.00279 (b) 0.0279 (c) 2.79 (d) 0.279
40. 40.0.34 × 7 — where does the decimal point go? (a) 0.0238 (b) 23.8 (c) 2.38 (d) 0.238

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