Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 473 · 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. 1.0.68 × 0.7 — where does the decimal point go? (a) 0.476 (b) 0.0476 (c) 0.00476 (d) 4.76
2. 2.0.64 × 0.4 — where does the decimal point go? (a) 0.0256 (b) 0.00256 (c) 0.256 (d) 2.56
3. 3.2.6 × 0.3 — where does the decimal point go? (a) 0.078 (b) 7.8 (c) 0.78 (d) 0.0078
4. 4.4.4 × 3.6 — where does the decimal point go? (a) 0.1584 (b) 158.4 (c) 15.84 (d) 1.584
5. 5.0.39 × 9 — where does the decimal point go? (a) 3.51 (b) 0.351 (c) 35.1 (d) 0.0351
6. 6.7.9 × 8 — where does the decimal point go? (a) 63.2 (b) 632 (c) 0.632 (d) 6.32
7. 7.1.4 × 8 — where does the decimal point go? (a) 0.112 (b) 11.2 (c) 1.12 (d) 112
8. 8.1.7 × 0.8 — where does the decimal point go? (a) 1.36 (b) 0.136 (c) 0.0136 (d) 13.6
9. 9.0.34 × 6 — where does the decimal point go? (a) 0.204 (b) 0.0204 (c) 2.04 (d) 20.4
10. 10.0.18 × 2 — where does the decimal point go? (a) 3.6 (b) 0.36 (c) 0.036 (d) 0.0036
11. 11.0.61 × 47 — where does the decimal point go? (a) 286.7 (b) 2.867 (c) 0.2867 (d) 28.67
12. 12.0.29 × 3.5 — where does the decimal point go? (a) 0.1015 (b) 0.01015 (c) 10.15 (d) 1.015
13. 13.5.3 × 0.7 — where does the decimal point go? (a) 3.71 (b) 0.0371 (c) 0.371 (d) 37.1
14. 14.7.7 × 3 — where does the decimal point go? (a) 231 (b) 0.231 (c) 2.31 (d) 23.1
15. 15.0.94 × 9 — where does the decimal point go? (a) 0.0846 (b) 84.6 (c) 8.46 (d) 0.846
16. 16.0.48 × 2 — where does the decimal point go? (a) 0.96 (b) 9.6 (c) 0.096 (d) 0.0096
17. 17.7.8 × 28 — where does the decimal point go? (a) 2.184 (b) 218.4 (c) 2184 (d) 21.84
18. 18.9.7 × 11 — where does the decimal point go? (a) 1.067 (b) 10.67 (c) 106.7 (d) 1067
19. 19.0.22 × 2.7 — where does the decimal point go? (a) 0.0594 (b) 0.00594 (c) 0.594 (d) 5.94
20. 20.0.28 × 0.7 — where does the decimal point go? (a) 0.196 (b) 1.96 (c) 0.00196 (d) 0.0196
21. 21.0.94 × 2.7 — where does the decimal point go? (a) 0.02538 (b) 25.38 (c) 0.2538 (d) 2.538
22. 22.0.69 × 11 — where does the decimal point go? (a) 7.59 (b) 75.9 (c) 0.0759 (d) 0.759
23. 23.3.4 × 9 — where does the decimal point go? (a) 306 (b) 0.306 (c) 3.06 (d) 30.6
24. 24.0.81 × 0.2 — where does the decimal point go? (a) 0.162 (b) 0.0162 (c) 0.00162 (d) 1.62
25. 25.9.5 × 3 — where does the decimal point go? (a) 28.5 (b) 0.285 (c) 285 (d) 2.85
26. 26.0.24 × 4 — where does the decimal point go? (a) 0.096 (b) 0.96 (c) 0.0096 (d) 9.6
27. 27.8.3 × 35 — where does the decimal point go? (a) 290.5 (b) 2.905 (c) 29.05 (d) 2905
28. 28.3.3 × 0.6 — where does the decimal point go? (a) 1.98 (b) 19.8 (c) 0.198 (d) 0.0198
29. 29.0.25 × 0.7 — where does the decimal point go? (a) 0.0175 (b) 0.00175 (c) 0.175 (d) 1.75
30. 30.0.38 × 16 — where does the decimal point go? (a) 0.0608 (b) 6.08 (c) 60.8 (d) 0.608
31. 31.4.4 × 4.4 — where does the decimal point go? (a) 1.936 (b) 193.6 (c) 0.1936 (d) 19.36
32. 32.0.13 × 3 — where does the decimal point go? (a) 0.39 (b) 0.039 (c) 0.0039 (d) 3.9
33. 33.1.4 × 9 — where does the decimal point go? (a) 12.6 (b) 0.126 (c) 1.26 (d) 126
34. 34.0.21 × 29 — where does the decimal point go? (a) 60.9 (b) 6.09 (c) 0.0609 (d) 0.609
35. 35.0.18 × 48 — where does the decimal point go? (a) 0.0864 (b) 8.64 (c) 86.4 (d) 0.864
36. 36.0.48 × 0.8 — where does the decimal point go? (a) 0.384 (b) 3.84 (c) 0.00384 (d) 0.0384
37. 37.9.6 × 0.6 — where does the decimal point go? (a) 5.76 (b) 0.0576 (c) 57.6 (d) 0.576
38. 38.0.78 × 3.7 — where does the decimal point go? (a) 0.02886 (b) 0.2886 (c) 28.86 (d) 2.886
39. 39.0.62 × 1.1 — where does the decimal point go? (a) 0.00682 (b) 0.0682 (c) 0.682 (d) 6.82
40. 40.0.23 × 9 — where does the decimal point go? (a) 0.0207 (b) 20.7 (c) 2.07 (d) 0.207

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