Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 793 · 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. 1.2.7 × 6 — where does the decimal point go? (a) 0.162 (b) 162 (c) 1.62 (d) 16.2
2. 2.0.75 × 0.5 — where does the decimal point go? (a) 0.00375 (b) 0.375 (c) 3.75 (d) 0.0375
3. 3.0.34 × 4.8 — where does the decimal point go? (a) 0.01632 (b) 0.1632 (c) 16.32 (d) 1.632
4. 4.4.3 × 2.3 — where does the decimal point go? (a) 9.89 (b) 98.9 (c) 0.989 (d) 0.0989
5. 5.0.62 × 44 — where does the decimal point go? (a) 0.2728 (b) 272.8 (c) 27.28 (d) 2.728
6. 6.4.3 × 1.7 — where does the decimal point go? (a) 7.31 (b) 0.731 (c) 0.0731 (d) 73.1
7. 7.5.7 × 13 — where does the decimal point go? (a) 0.741 (b) 741 (c) 7.41 (d) 74.1
8. 8.0.27 × 3.1 — where does the decimal point go? (a) 8.37 (b) 0.00837 (c) 0.837 (d) 0.0837
9. 9.7.5 × 7 — where does the decimal point go? (a) 52.5 (b) 525 (c) 0.525 (d) 5.25
10. 10.0.81 × 2.4 — where does the decimal point go? (a) 0.01944 (b) 19.44 (c) 0.1944 (d) 1.944
11. 11.0.95 × 3 — where does the decimal point go? (a) 0.285 (b) 0.0285 (c) 2.85 (d) 28.5
12. 12.0.27 × 5 — where does the decimal point go? (a) 0.135 (b) 13.5 (c) 0.0135 (d) 1.35
13. 13.8.4 × 1.2 — where does the decimal point go? (a) 0.1008 (b) 100.8 (c) 10.08 (d) 1.008
14. 14.9.3 × 0.9 — where does the decimal point go? (a) 0.837 (b) 0.0837 (c) 8.37 (d) 83.7
15. 15.7.1 × 27 — where does the decimal point go? (a) 1917 (b) 19.17 (c) 1.917 (d) 191.7
16. 16.3.1 × 13 — where does the decimal point go? (a) 40.3 (b) 403 (c) 4.03 (d) 0.403
17. 17.0.41 × 0.5 — where does the decimal point go? (a) 0.205 (b) 0.00205 (c) 0.0205 (d) 2.05
18. 18.0.29 × 2 — where does the decimal point go? (a) 5.8 (b) 0.058 (c) 0.0058 (d) 0.58
19. 19.0.92 × 4 — where does the decimal point go? (a) 3.68 (b) 0.0368 (c) 0.368 (d) 36.8
20. 20.0.25 × 0.3 — where does the decimal point go? (a) 0.0075 (b) 0.75 (c) 0.075 (d) 0.00075
21. 21.2.5 × 0.5 — where does the decimal point go? (a) 12.5 (b) 0.0125 (c) 0.125 (d) 1.25
22. 22.1.7 × 0.8 — where does the decimal point go? (a) 0.136 (b) 0.0136 (c) 13.6 (d) 1.36
23. 23.3.9 × 0.8 — where does the decimal point go? (a) 0.0312 (b) 0.312 (c) 3.12 (d) 31.2
24. 24.0.34 × 1.8 — where does the decimal point go? (a) 0.612 (b) 0.0612 (c) 0.00612 (d) 6.12
25. 25.0.51 × 25 — where does the decimal point go? (a) 1.275 (b) 12.75 (c) 127.5 (d) 0.1275
26. 26.0.87 × 0.9 — where does the decimal point go? (a) 0.00783 (b) 0.783 (c) 0.0783 (d) 7.83
27. 27.2.7 × 37 — where does the decimal point go? (a) 99.9 (b) 999 (c) 0.999 (d) 9.99
28. 28.2.7 × 2.8 — where does the decimal point go? (a) 0.0756 (b) 0.756 (c) 7.56 (d) 75.6
29. 29.5.2 × 4.6 — where does the decimal point go? (a) 0.2392 (b) 2.392 (c) 239.2 (d) 23.92
30. 30.0.65 × 37 — where does the decimal point go? (a) 240.5 (b) 0.2405 (c) 2.405 (d) 24.05
31. 31.9.9 × 4 — where does the decimal point go? (a) 0.396 (b) 396 (c) 39.6 (d) 3.96
32. 32.2.3 × 3 — where does the decimal point go? (a) 0.69 (b) 6.9 (c) 0.069 (d) 69
33. 33.6.8 × 0.7 — where does the decimal point go? (a) 4.76 (b) 47.6 (c) 0.0476 (d) 0.476
34. 34.0.32 × 1.8 — where does the decimal point go? (a) 0.00576 (b) 0.576 (c) 5.76 (d) 0.0576
35. 35.0.12 × 2.6 — where does the decimal point go? (a) 0.0312 (b) 3.12 (c) 0.00312 (d) 0.312
36. 36.0.54 × 2.1 — where does the decimal point go? (a) 0.01134 (b) 11.34 (c) 0.1134 (d) 1.134
37. 37.9.4 × 2 — where does the decimal point go? (a) 188 (b) 1.88 (c) 0.188 (d) 18.8
38. 38.0.64 × 2 — where does the decimal point go? (a) 0.128 (b) 0.0128 (c) 12.8 (d) 1.28
39. 39.3.9 × 3.5 — where does the decimal point go? (a) 13.65 (b) 136.5 (c) 1.365 (d) 0.1365
40. 40.2.6 × 24 — where does the decimal point go? (a) 62.4 (b) 0.624 (c) 6.24 (d) 624

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