Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 201 · 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. 1.0.93 × 0.3 — where does the decimal point go? (a) 0.279 (b) 2.79 (c) 0.00279 (d) 0.0279
2. 2.0.74 × 23 — where does the decimal point go? (a) 17.02 (b) 0.1702 (c) 1.702 (d) 170.2
3. 3.0.23 × 0.4 — where does the decimal point go? (a) 0.00092 (b) 0.92 (c) 0.0092 (d) 0.092
4. 4.0.46 × 2 — where does the decimal point go? (a) 0.0092 (b) 0.92 (c) 0.092 (d) 9.2
5. 5.9.7 × 0.9 — where does the decimal point go? (a) 0.0873 (b) 0.873 (c) 8.73 (d) 87.3
6. 6.3.7 × 3.2 — where does the decimal point go? (a) 1.184 (b) 11.84 (c) 118.4 (d) 0.1184
7. 7.4.1 × 8 — where does the decimal point go? (a) 0.328 (b) 328 (c) 3.28 (d) 32.8
8. 8.4.4 × 3.7 — where does the decimal point go? (a) 162.8 (b) 16.28 (c) 1.628 (d) 0.1628
9. 9.0.91 × 7 — where does the decimal point go? (a) 63.7 (b) 6.37 (c) 0.637 (d) 0.0637
10. 10.0.37 × 2 — where does the decimal point go? (a) 0.0074 (b) 0.074 (c) 7.4 (d) 0.74
11. 11.0.59 × 0.3 — where does the decimal point go? (a) 0.0177 (b) 0.00177 (c) 1.77 (d) 0.177
12. 12.0.33 × 9 — where does the decimal point go? (a) 0.0297 (b) 0.297 (c) 2.97 (d) 29.7
13. 13.5.5 × 45 — where does the decimal point go? (a) 24.75 (b) 2.475 (c) 247.5 (d) 2475
14. 14.2.2 × 4.1 — where does the decimal point go? (a) 9.02 (b) 0.0902 (c) 0.902 (d) 90.2
15. 15.7.2 × 0.8 — where does the decimal point go? (a) 5.76 (b) 0.0576 (c) 0.576 (d) 57.6
16. 16.0.33 × 2.6 — where does the decimal point go? (a) 0.858 (b) 0.00858 (c) 0.0858 (d) 8.58
17. 17.0.87 × 7 — where does the decimal point go? (a) 6.09 (b) 0.609 (c) 60.9 (d) 0.0609
18. 18.7.8 × 1.7 — where does the decimal point go? (a) 13.26 (b) 132.6 (c) 0.1326 (d) 1.326
19. 19.2.5 × 0.7 — where does the decimal point go? (a) 17.5 (b) 1.75 (c) 0.175 (d) 0.0175
20. 20.0.28 × 4.9 — where does the decimal point go? (a) 0.01372 (b) 0.1372 (c) 1.372 (d) 13.72
21. 21.1.7 × 0.7 — where does the decimal point go? (a) 0.119 (b) 0.0119 (c) 11.9 (d) 1.19
22. 22.0.52 × 3.3 — where does the decimal point go? (a) 0.1716 (b) 1.716 (c) 0.01716 (d) 17.16
23. 23.3.2 × 8 — where does the decimal point go? (a) 2.56 (b) 25.6 (c) 0.256 (d) 256
24. 24.0.39 × 25 — where does the decimal point go? (a) 9.75 (b) 0.975 (c) 0.0975 (d) 97.5
25. 25.8.2 × 32 — where does the decimal point go? (a) 26.24 (b) 2624 (c) 262.4 (d) 2.624
26. 26.5.6 × 3 — where does the decimal point go? (a) 16.8 (b) 1.68 (c) 168 (d) 0.168
27. 27.8.7 × 2 — where does the decimal point go? (a) 17.4 (b) 1.74 (c) 174 (d) 0.174
28. 28.0.31 × 0.8 — where does the decimal point go? (a) 0.0248 (b) 2.48 (c) 0.248 (d) 0.00248
29. 29.1.3 × 5 — where does the decimal point go? (a) 0.65 (b) 65 (c) 0.065 (d) 6.5
30. 30.0.14 × 2.6 — where does the decimal point go? (a) 3.64 (b) 0.0364 (c) 0.364 (d) 0.00364
31. 31.6.4 × 2.6 — where does the decimal point go? (a) 1.664 (b) 166.4 (c) 16.64 (d) 0.1664
32. 32.3.3 × 9 — where does the decimal point go? (a) 2.97 (b) 297 (c) 0.297 (d) 29.7
33. 33.0.76 × 8 — where does the decimal point go? (a) 6.08 (b) 0.608 (c) 0.0608 (d) 60.8
34. 34.5.8 × 4.8 — where does the decimal point go? (a) 27.84 (b) 2.784 (c) 278.4 (d) 0.2784
35. 35.7.6 × 2 — where does the decimal point go? (a) 1.52 (b) 0.152 (c) 15.2 (d) 152
36. 36.0.78 × 6 — where does the decimal point go? (a) 0.468 (b) 46.8 (c) 0.0468 (d) 4.68
37. 37.0.32 × 2.9 — where does the decimal point go? (a) 0.00928 (b) 0.0928 (c) 0.928 (d) 9.28
38. 38.0.43 × 0.3 — where does the decimal point go? (a) 0.0129 (b) 0.00129 (c) 0.129 (d) 1.29
39. 39.3.8 × 0.4 — where does the decimal point go? (a) 0.0152 (b) 1.52 (c) 15.2 (d) 0.152
40. 40.1.6 × 6 — where does the decimal point go? (a) 0.096 (b) 96 (c) 9.6 (d) 0.96

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