Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 957 · 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. 1.6.7 × 0.2 — where does the decimal point go? (a) 1.34 (b) 0.0134 (c) 0.134 (d) 13.4
2. 2.5.3 × 18 — where does the decimal point go? (a) 954 (b) 9.54 (c) 95.4 (d) 0.954
3. 3.6.3 × 3 — where does the decimal point go? (a) 1.89 (b) 0.189 (c) 18.9 (d) 189
4. 4.2.9 × 0.4 — where does the decimal point go? (a) 1.16 (b) 11.6 (c) 0.116 (d) 0.0116
5. 5.7.2 × 0.3 — where does the decimal point go? (a) 0.0216 (b) 21.6 (c) 0.216 (d) 2.16
6. 6.0.85 × 23 — where does the decimal point go? (a) 19.55 (b) 1.955 (c) 195.5 (d) 0.1955
7. 7.0.94 × 1.4 — where does the decimal point go? (a) 0.1316 (b) 13.16 (c) 1.316 (d) 0.01316
8. 8.7.9 × 2.5 — where does the decimal point go? (a) 0.1975 (b) 197.5 (c) 19.75 (d) 1.975
9. 9.0.37 × 12 — where does the decimal point go? (a) 0.444 (b) 44.4 (c) 4.44 (d) 0.0444
10. 10.0.29 × 3.8 — where does the decimal point go? (a) 0.01102 (b) 1.102 (c) 11.02 (d) 0.1102
11. 11.0.94 × 7 — where does the decimal point go? (a) 0.0658 (b) 6.58 (c) 65.8 (d) 0.658
12. 12.0.81 × 0.5 — where does the decimal point go? (a) 0.405 (b) 0.0405 (c) 0.00405 (d) 4.05
13. 13.0.65 × 7 — where does the decimal point go? (a) 45.5 (b) 0.455 (c) 0.0455 (d) 4.55
14. 14.7.4 × 2 — where does the decimal point go? (a) 1.48 (b) 0.148 (c) 14.8 (d) 148
15. 15.0.28 × 2.8 — where does the decimal point go? (a) 0.784 (b) 0.0784 (c) 7.84 (d) 0.00784
16. 16.9.7 × 2.6 — where does the decimal point go? (a) 252.2 (b) 25.22 (c) 0.2522 (d) 2.522
17. 17.8.2 × 47 — where does the decimal point go? (a) 3.854 (b) 3854 (c) 385.4 (d) 38.54
18. 18.0.57 × 3.4 — where does the decimal point go? (a) 0.01938 (b) 19.38 (c) 1.938 (d) 0.1938
19. 19.8.7 × 2 — where does the decimal point go? (a) 1.74 (b) 17.4 (c) 174 (d) 0.174
20. 20.4.7 × 19 — where does the decimal point go? (a) 893 (b) 8.93 (c) 0.893 (d) 89.3
21. 21.8.1 × 24 — where does the decimal point go? (a) 19.44 (b) 1944 (c) 194.4 (d) 1.944
22. 22.4.6 × 21 — where does the decimal point go? (a) 96.6 (b) 966 (c) 0.966 (d) 9.66
23. 23.7.3 × 47 — where does the decimal point go? (a) 3.431 (b) 34.31 (c) 343.1 (d) 3431
24. 24.0.58 × 7 — where does the decimal point go? (a) 0.0406 (b) 0.406 (c) 4.06 (d) 40.6
25. 25.0.12 × 2 — where does the decimal point go? (a) 0.0024 (b) 2.4 (c) 0.024 (d) 0.24
26. 26.2.4 × 9 — where does the decimal point go? (a) 216 (b) 0.216 (c) 21.6 (d) 2.16
27. 27.0.97 × 4.7 — where does the decimal point go? (a) 4.559 (b) 45.59 (c) 0.4559 (d) 0.04559
28. 28.0.83 × 2.3 — where does the decimal point go? (a) 0.1909 (b) 0.01909 (c) 1.909 (d) 19.09
29. 29.7.7 × 4.5 — where does the decimal point go? (a) 3.465 (b) 34.65 (c) 346.5 (d) 0.3465
30. 30.7.2 × 0.7 — where does the decimal point go? (a) 5.04 (b) 0.504 (c) 50.4 (d) 0.0504
31. 31.3.7 × 25 — where does the decimal point go? (a) 9.25 (b) 0.925 (c) 92.5 (d) 925
32. 32.6.1 × 2.3 — where does the decimal point go? (a) 1.403 (b) 14.03 (c) 0.1403 (d) 140.3
33. 33.0.83 × 0.3 — where does the decimal point go? (a) 0.249 (b) 0.00249 (c) 2.49 (d) 0.0249
34. 34.0.64 × 0.9 — where does the decimal point go? (a) 0.0576 (b) 0.576 (c) 5.76 (d) 0.00576
35. 35.2.2 × 31 — where does the decimal point go? (a) 682 (b) 0.682 (c) 68.2 (d) 6.82
36. 36.2.8 × 2 — where does the decimal point go? (a) 0.056 (b) 5.6 (c) 0.56 (d) 56
37. 37.9.5 × 0.7 — where does the decimal point go? (a) 6.65 (b) 66.5 (c) 0.665 (d) 0.0665
38. 38.0.79 × 24 — where does the decimal point go? (a) 0.1896 (b) 1.896 (c) 189.6 (d) 18.96
39. 39.3.7 × 13 — where does the decimal point go? (a) 481 (b) 0.481 (c) 4.81 (d) 48.1
40. 40.5.8 × 0.2 — where does the decimal point go? (a) 0.116 (b) 11.6 (c) 0.0116 (d) 1.16

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