Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 587 · 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. 1.0.82 × 13 — where does the decimal point go? (a) 0.1066 (b) 1.066 (c) 10.66 (d) 106.6
2. 2.0.71 × 4 — where does the decimal point go? (a) 0.0284 (b) 0.284 (c) 28.4 (d) 2.84
3. 3.4.4 × 3 — where does the decimal point go? (a) 1.32 (b) 13.2 (c) 132 (d) 0.132
4. 4.2.7 × 9 — where does the decimal point go? (a) 24.3 (b) 243 (c) 0.243 (d) 2.43
5. 5.3.2 × 4.1 — where does the decimal point go? (a) 1.312 (b) 131.2 (c) 0.1312 (d) 13.12
6. 6.0.99 × 0.6 — where does the decimal point go? (a) 5.94 (b) 0.594 (c) 0.00594 (d) 0.0594
7. 7.0.54 × 2 — where does the decimal point go? (a) 0.108 (b) 10.8 (c) 1.08 (d) 0.0108
8. 8.0.96 × 7 — where does the decimal point go? (a) 0.672 (b) 0.0672 (c) 67.2 (d) 6.72
9. 9.7.8 × 4.6 — where does the decimal point go? (a) 358.8 (b) 3.588 (c) 0.3588 (d) 35.88
10. 10.0.65 × 35 — where does the decimal point go? (a) 22.75 (b) 2.275 (c) 0.2275 (d) 227.5
11. 11.8.3 × 2.8 — where does the decimal point go? (a) 232.4 (b) 23.24 (c) 2.324 (d) 0.2324
12. 12.0.39 × 0.9 — where does the decimal point go? (a) 3.51 (b) 0.00351 (c) 0.0351 (d) 0.351
13. 13.0.34 × 1.7 — where does the decimal point go? (a) 0.0578 (b) 0.578 (c) 5.78 (d) 0.00578
14. 14.0.46 × 14 — where does the decimal point go? (a) 6.44 (b) 0.0644 (c) 64.4 (d) 0.644
15. 15.7.8 × 16 — where does the decimal point go? (a) 124.8 (b) 12.48 (c) 1248 (d) 1.248
16. 16.9.2 × 4 — where does the decimal point go? (a) 3.68 (b) 368 (c) 0.368 (d) 36.8
17. 17.2.1 × 0.6 — where does the decimal point go? (a) 0.0126 (b) 0.126 (c) 12.6 (d) 1.26
18. 18.3.7 × 4 — where does the decimal point go? (a) 148 (b) 1.48 (c) 14.8 (d) 0.148
19. 19.0.89 × 1.8 — where does the decimal point go? (a) 16.02 (b) 0.01602 (c) 1.602 (d) 0.1602
20. 20.0.29 × 17 — where does the decimal point go? (a) 4.93 (b) 0.0493 (c) 0.493 (d) 49.3
21. 21.4.4 × 38 — where does the decimal point go? (a) 1672 (b) 167.2 (c) 16.72 (d) 1.672
22. 22.0.73 × 32 — where does the decimal point go? (a) 0.2336 (b) 233.6 (c) 23.36 (d) 2.336
23. 23.1.8 × 0.7 — where does the decimal point go? (a) 0.0126 (b) 12.6 (c) 0.126 (d) 1.26
24. 24.8.9 × 2.1 — where does the decimal point go? (a) 18.69 (b) 1.869 (c) 186.9 (d) 0.1869
25. 25.0.69 × 17 — where does the decimal point go? (a) 1.173 (b) 0.1173 (c) 117.3 (d) 11.73
26. 26.3.1 × 0.8 — where does the decimal point go? (a) 0.0248 (b) 24.8 (c) 2.48 (d) 0.248
27. 27.0.49 × 0.8 — where does the decimal point go? (a) 0.0392 (b) 0.392 (c) 3.92 (d) 0.00392
28. 28.3.9 × 0.4 — where does the decimal point go? (a) 0.156 (b) 15.6 (c) 0.0156 (d) 1.56
29. 29.0.39 × 7 — where does the decimal point go? (a) 27.3 (b) 0.273 (c) 2.73 (d) 0.0273
30. 30.4.1 × 3.8 — where does the decimal point go? (a) 155.8 (b) 15.58 (c) 0.1558 (d) 1.558
31. 31.0.27 × 6 — where does the decimal point go? (a) 16.2 (b) 0.162 (c) 0.0162 (d) 1.62
32. 32.0.29 × 37 — where does the decimal point go? (a) 10.73 (b) 0.1073 (c) 107.3 (d) 1.073
33. 33.0.27 × 11 — where does the decimal point go? (a) 0.297 (b) 29.7 (c) 2.97 (d) 0.0297
34. 34.0.71 × 0.8 — where does the decimal point go? (a) 0.568 (b) 0.0568 (c) 5.68 (d) 0.00568
35. 35.2.9 × 5 — where does the decimal point go? (a) 14.5 (b) 0.145 (c) 1.45 (d) 145
36. 36.0.57 × 2.8 — where does the decimal point go? (a) 0.01596 (b) 0.1596 (c) 1.596 (d) 15.96
37. 37.1.4 × 6 — where does the decimal point go? (a) 8.4 (b) 0.84 (c) 84 (d) 0.084
38. 38.0.59 × 4.3 — where does the decimal point go? (a) 2.537 (b) 0.2537 (c) 0.02537 (d) 25.37
39. 39.0.27 × 0.7 — where does the decimal point go? (a) 0.189 (b) 1.89 (c) 0.00189 (d) 0.0189
40. 40.0.72 × 3 — where does the decimal point go? (a) 0.216 (b) 2.16 (c) 21.6 (d) 0.0216

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