Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 807 · 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. 1.0.73 × 31 — where does the decimal point go? (a) 0.2263 (b) 2.263 (c) 226.3 (d) 22.63
2. 2.7.4 × 13 — where does the decimal point go? (a) 9.62 (b) 0.962 (c) 962 (d) 96.2
3. 3.0.63 × 42 — where does the decimal point go? (a) 26.46 (b) 0.2646 (c) 264.6 (d) 2.646
4. 4.0.52 × 0.4 — where does the decimal point go? (a) 0.208 (b) 2.08 (c) 0.00208 (d) 0.0208
5. 5.5.9 × 26 — where does the decimal point go? (a) 1.534 (b) 15.34 (c) 1534 (d) 153.4
6. 6.0.27 × 0.9 — where does the decimal point go? (a) 2.43 (b) 0.00243 (c) 0.243 (d) 0.0243
7. 7.0.37 × 0.6 — where does the decimal point go? (a) 2.22 (b) 0.0222 (c) 0.00222 (d) 0.222
8. 8.2.5 × 0.3 — where does the decimal point go? (a) 0.75 (b) 0.075 (c) 7.5 (d) 0.0075
9. 9.3.6 × 1.4 — where does the decimal point go? (a) 0.0504 (b) 0.504 (c) 50.4 (d) 5.04
10. 10.0.85 × 1.9 — where does the decimal point go? (a) 1.615 (b) 16.15 (c) 0.01615 (d) 0.1615
11. 11.0.13 × 3 — where does the decimal point go? (a) 3.9 (b) 0.0039 (c) 0.39 (d) 0.039
12. 12.2.7 × 4.4 — where does the decimal point go? (a) 11.88 (b) 118.8 (c) 0.1188 (d) 1.188
13. 13.4.6 × 3.1 — where does the decimal point go? (a) 0.1426 (b) 14.26 (c) 1.426 (d) 142.6
14. 14.0.53 × 0.5 — where does the decimal point go? (a) 2.65 (b) 0.00265 (c) 0.265 (d) 0.0265
15. 15.0.13 × 4.6 — where does the decimal point go? (a) 0.0598 (b) 0.598 (c) 0.00598 (d) 5.98
16. 16.0.18 × 0.3 — where does the decimal point go? (a) 0.54 (b) 0.00054 (c) 0.054 (d) 0.0054
17. 17.7.7 × 0.6 — where does the decimal point go? (a) 0.0462 (b) 0.462 (c) 4.62 (d) 46.2
18. 18.0.27 × 3 — where does the decimal point go? (a) 0.81 (b) 8.1 (c) 0.0081 (d) 0.081
19. 19.0.54 × 21 — where does the decimal point go? (a) 113.4 (b) 11.34 (c) 1.134 (d) 0.1134
20. 20.0.23 × 0.4 — where does the decimal point go? (a) 0.00092 (b) 0.0092 (c) 0.92 (d) 0.092
21. 21.7.3 × 1.4 — where does the decimal point go? (a) 0.1022 (b) 102.2 (c) 10.22 (d) 1.022
22. 22.9.3 × 1.5 — where does the decimal point go? (a) 0.1395 (b) 1.395 (c) 13.95 (d) 139.5
23. 23.0.74 × 3 — where does the decimal point go? (a) 2.22 (b) 0.0222 (c) 0.222 (d) 22.2
24. 24.4.1 × 28 — where does the decimal point go? (a) 1148 (b) 11.48 (c) 1.148 (d) 114.8
25. 25.1.8 × 2 — where does the decimal point go? (a) 3.6 (b) 36 (c) 0.36 (d) 0.036
26. 26.0.64 × 46 — where does the decimal point go? (a) 0.2944 (b) 294.4 (c) 2.944 (d) 29.44
27. 27.0.22 × 4.3 — where does the decimal point go? (a) 0.0946 (b) 0.00946 (c) 0.946 (d) 9.46
28. 28.0.93 × 6 — where does the decimal point go? (a) 0.0558 (b) 0.558 (c) 5.58 (d) 55.8
29. 29.0.93 × 4 — where does the decimal point go? (a) 0.0372 (b) 37.2 (c) 3.72 (d) 0.372
30. 30.0.32 × 21 — where does the decimal point go? (a) 0.672 (b) 0.0672 (c) 6.72 (d) 67.2
31. 31.3.9 × 36 — where does the decimal point go? (a) 140.4 (b) 1404 (c) 14.04 (d) 1.404
32. 32.0.49 × 3.8 — where does the decimal point go? (a) 0.01862 (b) 0.1862 (c) 1.862 (d) 18.62
33. 33.0.29 × 3 — where does the decimal point go? (a) 0.0087 (b) 0.87 (c) 0.087 (d) 8.7
34. 34.0.86 × 13 — where does the decimal point go? (a) 111.8 (b) 1.118 (c) 11.18 (d) 0.1118
35. 35.0.59 × 36 — where does the decimal point go? (a) 21.24 (b) 212.4 (c) 0.2124 (d) 2.124
36. 36.1.4 × 22 — where does the decimal point go? (a) 0.308 (b) 30.8 (c) 308 (d) 3.08
37. 37.0.51 × 0.9 — where does the decimal point go? (a) 4.59 (b) 0.0459 (c) 0.00459 (d) 0.459
38. 38.9.3 × 3 — where does the decimal point go? (a) 27.9 (b) 279 (c) 2.79 (d) 0.279
39. 39.6.4 × 8 — where does the decimal point go? (a) 512 (b) 5.12 (c) 51.2 (d) 0.512
40. 40.0.98 × 0.4 — where does the decimal point go? (a) 0.0392 (b) 0.00392 (c) 3.92 (d) 0.392

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