Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 575 · 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. 1.2.2 × 4 — where does the decimal point go? (a) 0.88 (b) 88 (c) 8.8 (d) 0.088
2. 2.0.88 × 3.1 — where does the decimal point go? (a) 0.02728 (b) 2.728 (c) 27.28 (d) 0.2728
3. 3.8.3 × 34 — where does the decimal point go? (a) 28.22 (b) 2.822 (c) 2822 (d) 282.2
4. 4.0.89 × 3.7 — where does the decimal point go? (a) 0.3293 (b) 32.93 (c) 0.03293 (d) 3.293
5. 5.8.4 × 1.7 — where does the decimal point go? (a) 1.428 (b) 0.1428 (c) 14.28 (d) 142.8
6. 6.0.32 × 0.9 — where does the decimal point go? (a) 0.0288 (b) 0.288 (c) 0.00288 (d) 2.88
7. 7.0.25 × 29 — where does the decimal point go? (a) 0.0725 (b) 7.25 (c) 72.5 (d) 0.725
8. 8.7.4 × 2 — where does the decimal point go? (a) 1.48 (b) 148 (c) 14.8 (d) 0.148
9. 9.0.66 × 2 — where does the decimal point go? (a) 0.0132 (b) 0.132 (c) 1.32 (d) 13.2
10. 10.0.47 × 17 — where does the decimal point go? (a) 0.799 (b) 0.0799 (c) 79.9 (d) 7.99
11. 11.0.79 × 3 — where does the decimal point go? (a) 0.237 (b) 0.0237 (c) 23.7 (d) 2.37
12. 12.6.9 × 0.4 — where does the decimal point go? (a) 0.276 (b) 2.76 (c) 27.6 (d) 0.0276
13. 13.0.43 × 3.4 — where does the decimal point go? (a) 1.462 (b) 0.1462 (c) 0.01462 (d) 14.62
14. 14.0.93 × 3 — where does the decimal point go? (a) 27.9 (b) 0.0279 (c) 0.279 (d) 2.79
15. 15.9.2 × 14 — where does the decimal point go? (a) 1288 (b) 128.8 (c) 1.288 (d) 12.88
16. 16.0.31 × 9 — where does the decimal point go? (a) 2.79 (b) 0.279 (c) 27.9 (d) 0.0279
17. 17.2.5 × 0.7 — where does the decimal point go? (a) 1.75 (b) 0.175 (c) 0.0175 (d) 17.5
18. 18.0.93 × 2 — where does the decimal point go? (a) 0.0186 (b) 1.86 (c) 0.186 (d) 18.6
19. 19.0.56 × 2.8 — where does the decimal point go? (a) 0.1568 (b) 15.68 (c) 0.01568 (d) 1.568
20. 20.5.9 × 2 — where does the decimal point go? (a) 118 (b) 0.118 (c) 11.8 (d) 1.18
21. 21.9.4 × 29 — where does the decimal point go? (a) 272.6 (b) 2.726 (c) 27.26 (d) 2726
22. 22.2.1 × 3.1 — where does the decimal point go? (a) 65.1 (b) 6.51 (c) 0.651 (d) 0.0651
23. 23.7.6 × 0.9 — where does the decimal point go? (a) 0.0684 (b) 0.684 (c) 68.4 (d) 6.84
24. 24.9.3 × 49 — where does the decimal point go? (a) 455.7 (b) 45.57 (c) 4557 (d) 4.557
25. 25.0.57 × 8 — where does the decimal point go? (a) 0.456 (b) 4.56 (c) 0.0456 (d) 45.6
26. 26.1.7 × 0.9 — where does the decimal point go? (a) 0.153 (b) 1.53 (c) 15.3 (d) 0.0153
27. 27.2.9 × 3.6 — where does the decimal point go? (a) 10.44 (b) 104.4 (c) 1.044 (d) 0.1044
28. 28.8.6 × 3.8 — where does the decimal point go? (a) 32.68 (b) 3.268 (c) 326.8 (d) 0.3268
29. 29.9.1 × 2.8 — where does the decimal point go? (a) 0.2548 (b) 25.48 (c) 254.8 (d) 2.548
30. 30.0.33 × 3 — where does the decimal point go? (a) 0.99 (b) 9.9 (c) 0.0099 (d) 0.099
31. 31.1.8 × 0.3 — where does the decimal point go? (a) 0.0054 (b) 5.4 (c) 0.054 (d) 0.54
32. 32.2.4 × 1.4 — where does the decimal point go? (a) 3.36 (b) 0.0336 (c) 0.336 (d) 33.6
33. 33.0.96 × 3 — where does the decimal point go? (a) 28.8 (b) 2.88 (c) 0.0288 (d) 0.288
34. 34.5.2 × 0.3 — where does the decimal point go? (a) 1.56 (b) 0.156 (c) 0.0156 (d) 15.6
35. 35.9.8 × 9 — where does the decimal point go? (a) 88.2 (b) 882 (c) 0.882 (d) 8.82
36. 36.8.1 × 11 — where does the decimal point go? (a) 891 (b) 8.91 (c) 0.891 (d) 89.1
37. 37.0.14 × 7 — where does the decimal point go? (a) 9.8 (b) 0.098 (c) 0.0098 (d) 0.98
38. 38.4.7 × 42 — where does the decimal point go? (a) 19.74 (b) 1.974 (c) 1974 (d) 197.4
39. 39.0.61 × 33 — where does the decimal point go? (a) 20.13 (b) 2.013 (c) 0.2013 (d) 201.3
40. 40.7.3 × 2 — where does the decimal point go? (a) 146 (b) 0.146 (c) 14.6 (d) 1.46

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