Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 52 · 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. 1.3.6 × 2 — where does the decimal point go? (a) 0.072 (b) 7.2 (c) 0.72 (d) 72
2. 2.0.72 × 0.8 — where does the decimal point go? (a) 0.0576 (b) 0.576 (c) 5.76 (d) 0.00576
3. 3.8.6 × 0.6 — where does the decimal point go? (a) 0.0516 (b) 51.6 (c) 0.516 (d) 5.16
4. 4.6.5 × 0.7 — where does the decimal point go? (a) 4.55 (b) 0.455 (c) 45.5 (d) 0.0455
5. 5.4.9 × 3.4 — where does the decimal point go? (a) 0.1666 (b) 16.66 (c) 1.666 (d) 166.6
6. 6.3.6 × 4.6 — where does the decimal point go? (a) 1.656 (b) 16.56 (c) 165.6 (d) 0.1656
7. 7.1.2 × 0.9 — where does the decimal point go? (a) 1.08 (b) 10.8 (c) 0.108 (d) 0.0108
8. 8.0.23 × 9 — where does the decimal point go? (a) 2.07 (b) 0.207 (c) 20.7 (d) 0.0207
9. 9.0.99 × 5 — where does the decimal point go? (a) 0.495 (b) 4.95 (c) 49.5 (d) 0.0495
10. 10.0.81 × 1.3 — where does the decimal point go? (a) 10.53 (b) 0.01053 (c) 0.1053 (d) 1.053
11. 11.6.9 × 5 — where does the decimal point go? (a) 34.5 (b) 3.45 (c) 345 (d) 0.345
12. 12.3.1 × 6 — where does the decimal point go? (a) 0.186 (b) 1.86 (c) 18.6 (d) 186
13. 13.0.31 × 31 — where does the decimal point go? (a) 0.961 (b) 96.1 (c) 0.0961 (d) 9.61
14. 14.0.48 × 6 — where does the decimal point go? (a) 0.0288 (b) 2.88 (c) 0.288 (d) 28.8
15. 15.9.9 × 7 — where does the decimal point go? (a) 693 (b) 0.693 (c) 69.3 (d) 6.93
16. 16.1.8 × 6 — where does the decimal point go? (a) 10.8 (b) 1.08 (c) 0.108 (d) 108
17. 17.7.2 × 23 — where does the decimal point go? (a) 1656 (b) 16.56 (c) 165.6 (d) 1.656
18. 18.6.3 × 4.7 — where does the decimal point go? (a) 0.2961 (b) 29.61 (c) 2.961 (d) 296.1
19. 19.0.98 × 0.6 — where does the decimal point go? (a) 0.00588 (b) 5.88 (c) 0.0588 (d) 0.588
20. 20.0.33 × 24 — where does the decimal point go? (a) 0.0792 (b) 79.2 (c) 0.792 (d) 7.92
21. 21.0.43 × 0.2 — where does the decimal point go? (a) 0.086 (b) 0.00086 (c) 0.0086 (d) 0.86
22. 22.5.7 × 0.6 — where does the decimal point go? (a) 0.342 (b) 3.42 (c) 0.0342 (d) 34.2
23. 23.0.79 × 2.7 — where does the decimal point go? (a) 2.133 (b) 0.2133 (c) 21.33 (d) 0.02133
24. 24.0.25 × 0.9 — where does the decimal point go? (a) 0.225 (b) 0.00225 (c) 2.25 (d) 0.0225
25. 25.9.2 × 4.2 — where does the decimal point go? (a) 0.3864 (b) 386.4 (c) 3.864 (d) 38.64
26. 26.0.93 × 0.8 — where does the decimal point go? (a) 7.44 (b) 0.0744 (c) 0.00744 (d) 0.744
27. 27.0.16 × 3 — where does the decimal point go? (a) 0.048 (b) 0.48 (c) 4.8 (d) 0.0048
28. 28.0.23 × 2.8 — where does the decimal point go? (a) 0.00644 (b) 0.0644 (c) 0.644 (d) 6.44
29. 29.6.1 × 4 — where does the decimal point go? (a) 244 (b) 0.244 (c) 24.4 (d) 2.44
30. 30.0.44 × 4 — where does the decimal point go? (a) 17.6 (b) 1.76 (c) 0.176 (d) 0.0176
31. 31.1.6 × 24 — where does the decimal point go? (a) 3.84 (b) 0.384 (c) 384 (d) 38.4
32. 32.6.7 × 13 — where does the decimal point go? (a) 0.871 (b) 8.71 (c) 87.1 (d) 871
33. 33.2.3 × 0.5 — where does the decimal point go? (a) 0.115 (b) 0.0115 (c) 1.15 (d) 11.5
34. 34.0.52 × 48 — where does the decimal point go? (a) 2.496 (b) 249.6 (c) 24.96 (d) 0.2496
35. 35.0.16 × 2.2 — where does the decimal point go? (a) 0.00352 (b) 0.0352 (c) 0.352 (d) 3.52
36. 36.2.9 × 4.1 — where does the decimal point go? (a) 118.9 (b) 1.189 (c) 11.89 (d) 0.1189
37. 37.0.92 × 8 — where does the decimal point go? (a) 0.0736 (b) 73.6 (c) 0.736 (d) 7.36
38. 38.0.47 × 2 — where does the decimal point go? (a) 0.0094 (b) 0.094 (c) 9.4 (d) 0.94
39. 39.0.27 × 0.9 — where does the decimal point go? (a) 0.243 (b) 0.0243 (c) 2.43 (d) 0.00243
40. 40.0.37 × 25 — where does the decimal point go? (a) 0.925 (b) 9.25 (c) 92.5 (d) 0.0925

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