Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 705 · 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. 1.0.76 × 11 — where does the decimal point go? (a) 83.6 (b) 8.36 (c) 0.836 (d) 0.0836
2. 2.0.29 × 3.9 — where does the decimal point go? (a) 11.31 (b) 0.1131 (c) 1.131 (d) 0.01131
3. 3.0.47 × 46 — where does the decimal point go? (a) 0.2162 (b) 216.2 (c) 2.162 (d) 21.62
4. 4.2.1 × 3.2 — where does the decimal point go? (a) 6.72 (b) 0.0672 (c) 0.672 (d) 67.2
5. 5.3.7 × 9 — where does the decimal point go? (a) 33.3 (b) 333 (c) 0.333 (d) 3.33
6. 6.0.38 × 0.2 — where does the decimal point go? (a) 0.076 (b) 0.0076 (c) 0.00076 (d) 0.76
7. 7.0.24 × 1.9 — where does the decimal point go? (a) 0.0456 (b) 4.56 (c) 0.456 (d) 0.00456
8. 8.0.66 × 17 — where does the decimal point go? (a) 1.122 (b) 11.22 (c) 0.1122 (d) 112.2
9. 9.0.83 × 44 — where does the decimal point go? (a) 0.3652 (b) 36.52 (c) 3.652 (d) 365.2
10. 10.9.4 × 0.2 — where does the decimal point go? (a) 18.8 (b) 0.0188 (c) 1.88 (d) 0.188
11. 11.8.8 × 1.4 — where does the decimal point go? (a) 1.232 (b) 0.1232 (c) 123.2 (d) 12.32
12. 12.9.7 × 0.5 — where does the decimal point go? (a) 48.5 (b) 0.0485 (c) 0.485 (d) 4.85
13. 13.8.7 × 4.6 — where does the decimal point go? (a) 0.4002 (b) 4.002 (c) 400.2 (d) 40.02
14. 14.9.7 × 0.8 — where does the decimal point go? (a) 0.0776 (b) 7.76 (c) 77.6 (d) 0.776
15. 15.9.5 × 3 — where does the decimal point go? (a) 2.85 (b) 28.5 (c) 0.285 (d) 285
16. 16.1.9 × 2.8 — where does the decimal point go? (a) 5.32 (b) 0.0532 (c) 0.532 (d) 53.2
17. 17.4.6 × 0.8 — where does the decimal point go? (a) 36.8 (b) 0.368 (c) 3.68 (d) 0.0368
18. 18.2.9 × 1.2 — where does the decimal point go? (a) 3.48 (b) 34.8 (c) 0.0348 (d) 0.348
19. 19.3.2 × 3.4 — where does the decimal point go? (a) 10.88 (b) 1.088 (c) 0.1088 (d) 108.8
20. 20.0.74 × 6 — where does the decimal point go? (a) 0.444 (b) 44.4 (c) 0.0444 (d) 4.44
21. 21.3.5 × 0.5 — where does the decimal point go? (a) 1.75 (b) 17.5 (c) 0.0175 (d) 0.175
22. 22.0.24 × 0.9 — where does the decimal point go? (a) 0.216 (b) 2.16 (c) 0.00216 (d) 0.0216
23. 23.0.86 × 6 — where does the decimal point go? (a) 51.6 (b) 5.16 (c) 0.516 (d) 0.0516
24. 24.3.4 × 0.6 — where does the decimal point go? (a) 2.04 (b) 20.4 (c) 0.204 (d) 0.0204
25. 25.0.13 × 0.5 — where does the decimal point go? (a) 0.00065 (b) 0.65 (c) 0.0065 (d) 0.065
26. 26.0.91 × 0.7 — where does the decimal point go? (a) 0.637 (b) 6.37 (c) 0.0637 (d) 0.00637
27. 27.0.99 × 6 — where does the decimal point go? (a) 59.4 (b) 0.0594 (c) 5.94 (d) 0.594
28. 28.0.82 × 1.3 — where does the decimal point go? (a) 10.66 (b) 1.066 (c) 0.01066 (d) 0.1066
29. 29.4.8 × 0.3 — where does the decimal point go? (a) 0.144 (b) 0.0144 (c) 14.4 (d) 1.44
30. 30.4.7 × 0.5 — where does the decimal point go? (a) 2.35 (b) 0.0235 (c) 23.5 (d) 0.235
31. 31.1.5 × 0.9 — where does the decimal point go? (a) 0.135 (b) 1.35 (c) 0.0135 (d) 13.5
32. 32.0.73 × 0.8 — where does the decimal point go? (a) 5.84 (b) 0.584 (c) 0.0584 (d) 0.00584
33. 33.0.34 × 46 — where does the decimal point go? (a) 1.564 (b) 0.1564 (c) 15.64 (d) 156.4
34. 34.1.3 × 0.8 — where does the decimal point go? (a) 0.0104 (b) 0.104 (c) 1.04 (d) 10.4
35. 35.5.4 × 0.8 — where does the decimal point go? (a) 4.32 (b) 43.2 (c) 0.0432 (d) 0.432
36. 36.8.7 × 1.5 — where does the decimal point go? (a) 1.305 (b) 0.1305 (c) 13.05 (d) 130.5
37. 37.0.53 × 0.5 — where does the decimal point go? (a) 0.0265 (b) 2.65 (c) 0.265 (d) 0.00265
38. 38.8.5 × 49 — where does the decimal point go? (a) 416.5 (b) 41.65 (c) 4.165 (d) 4165
39. 39.1.5 × 0.7 — where does the decimal point go? (a) 1.05 (b) 10.5 (c) 0.0105 (d) 0.105
40. 40.7.8 × 0.9 — where does the decimal point go? (a) 0.702 (b) 0.0702 (c) 7.02 (d) 70.2

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