Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 335 · 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. 1.0.92 × 0.8 — where does the decimal point go? (a) 0.0736 (b) 0.736 (c) 0.00736 (d) 7.36
2. 2.0.22 × 32 — where does the decimal point go? (a) 0.704 (b) 7.04 (c) 70.4 (d) 0.0704
3. 3.1.8 × 3 — where does the decimal point go? (a) 5.4 (b) 0.54 (c) 0.054 (d) 54
4. 4.5.7 × 2.5 — where does the decimal point go? (a) 142.5 (b) 0.1425 (c) 1.425 (d) 14.25
5. 5.0.43 × 0.5 — where does the decimal point go? (a) 0.0215 (b) 0.215 (c) 2.15 (d) 0.00215
6. 6.0.93 × 3 — where does the decimal point go? (a) 27.9 (b) 2.79 (c) 0.279 (d) 0.0279
7. 7.0.42 × 48 — where does the decimal point go? (a) 0.2016 (b) 201.6 (c) 20.16 (d) 2.016
8. 8.6.3 × 0.2 — where does the decimal point go? (a) 1.26 (b) 12.6 (c) 0.0126 (d) 0.126
9. 9.0.66 × 27 — where does the decimal point go? (a) 0.1782 (b) 17.82 (c) 178.2 (d) 1.782
10. 10.0.42 × 46 — where does the decimal point go? (a) 19.32 (b) 1.932 (c) 0.1932 (d) 193.2
11. 11.0.83 × 6 — where does the decimal point go? (a) 0.0498 (b) 4.98 (c) 49.8 (d) 0.498
12. 12.0.31 × 1.4 — where does the decimal point go? (a) 0.0434 (b) 4.34 (c) 0.00434 (d) 0.434
13. 13.0.65 × 0.3 — where does the decimal point go? (a) 0.0195 (b) 1.95 (c) 0.195 (d) 0.00195
14. 14.0.93 × 2.1 — where does the decimal point go? (a) 0.1953 (b) 19.53 (c) 0.01953 (d) 1.953
15. 15.0.36 × 3.1 — where does the decimal point go? (a) 1.116 (b) 11.16 (c) 0.01116 (d) 0.1116
16. 16.0.73 × 5 — where does the decimal point go? (a) 36.5 (b) 3.65 (c) 0.0365 (d) 0.365
17. 17.6.9 × 0.6 — where does the decimal point go? (a) 0.0414 (b) 4.14 (c) 41.4 (d) 0.414
18. 18.0.81 × 29 — where does the decimal point go? (a) 0.2349 (b) 2.349 (c) 23.49 (d) 234.9
19. 19.0.21 × 2.5 — where does the decimal point go? (a) 0.0525 (b) 0.00525 (c) 5.25 (d) 0.525
20. 20.2.6 × 3 — where does the decimal point go? (a) 0.78 (b) 78 (c) 0.078 (d) 7.8
21. 21.0.47 × 7 — where does the decimal point go? (a) 3.29 (b) 0.329 (c) 32.9 (d) 0.0329
22. 22.0.31 × 3.2 — where does the decimal point go? (a) 0.0992 (b) 9.92 (c) 0.992 (d) 0.00992
23. 23.0.16 × 0.2 — where does the decimal point go? (a) 0.032 (b) 0.0032 (c) 0.00032 (d) 0.32
24. 24.9.8 × 3 — where does the decimal point go? (a) 29.4 (b) 2.94 (c) 0.294 (d) 294
25. 25.0.45 × 0.3 — where does the decimal point go? (a) 0.135 (b) 0.0135 (c) 1.35 (d) 0.00135
26. 26.7.9 × 0.9 — where does the decimal point go? (a) 71.1 (b) 7.11 (c) 0.711 (d) 0.0711
27. 27.0.65 × 5 — where does the decimal point go? (a) 3.25 (b) 32.5 (c) 0.0325 (d) 0.325
28. 28.0.96 × 3 — where does the decimal point go? (a) 2.88 (b) 28.8 (c) 0.0288 (d) 0.288
29. 29.0.23 × 25 — where does the decimal point go? (a) 0.575 (b) 57.5 (c) 0.0575 (d) 5.75
30. 30.9.5 × 15 — where does the decimal point go? (a) 1.425 (b) 142.5 (c) 1425 (d) 14.25
31. 31.2.3 × 3 — where does the decimal point go? (a) 69 (b) 0.069 (c) 6.9 (d) 0.69
32. 32.2.8 × 2 — where does the decimal point go? (a) 0.56 (b) 56 (c) 5.6 (d) 0.056
33. 33.7.9 × 0.2 — where does the decimal point go? (a) 0.158 (b) 0.0158 (c) 1.58 (d) 15.8
34. 34.0.16 × 4 — where does the decimal point go? (a) 0.064 (b) 0.0064 (c) 6.4 (d) 0.64
35. 35.6.5 × 0.5 — where does the decimal point go? (a) 0.325 (b) 3.25 (c) 0.0325 (d) 32.5
36. 36.0.32 × 9 — where does the decimal point go? (a) 2.88 (b) 0.288 (c) 28.8 (d) 0.0288
37. 37.0.61 × 0.6 — where does the decimal point go? (a) 0.00366 (b) 0.0366 (c) 3.66 (d) 0.366
38. 38.9.2 × 4.9 — where does the decimal point go? (a) 4.508 (b) 45.08 (c) 0.4508 (d) 450.8
39. 39.0.56 × 0.8 — where does the decimal point go? (a) 4.48 (b) 0.00448 (c) 0.0448 (d) 0.448
40. 40.0.93 × 5 — where does the decimal point go? (a) 4.65 (b) 0.0465 (c) 46.5 (d) 0.465

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