Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 741 · 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. 1.0.22 × 0.8 — where does the decimal point go? (a) 0.176 (b) 0.0176 (c) 0.00176 (d) 1.76
2. 2.4.4 × 9 — where does the decimal point go? (a) 3.96 (b) 0.396 (c) 396 (d) 39.6
3. 3.2.7 × 2.5 — where does the decimal point go? (a) 0.0675 (b) 67.5 (c) 6.75 (d) 0.675
4. 4.3.1 × 4.5 — where does the decimal point go? (a) 0.1395 (b) 139.5 (c) 1.395 (d) 13.95
5. 5.1.9 × 3 — where does the decimal point go? (a) 0.57 (b) 0.057 (c) 57 (d) 5.7
6. 6.1.8 × 4 — where does the decimal point go? (a) 0.72 (b) 0.072 (c) 72 (d) 7.2
7. 7.0.98 × 38 — where does the decimal point go? (a) 372.4 (b) 0.3724 (c) 37.24 (d) 3.724
8. 8.0.77 × 0.4 — where does the decimal point go? (a) 3.08 (b) 0.00308 (c) 0.308 (d) 0.0308
9. 9.0.92 × 4.8 — where does the decimal point go? (a) 4.416 (b) 0.04416 (c) 44.16 (d) 0.4416
10. 10.0.76 × 0.3 — where does the decimal point go? (a) 0.0228 (b) 2.28 (c) 0.228 (d) 0.00228
11. 11.8.9 × 3.2 — where does the decimal point go? (a) 284.8 (b) 0.2848 (c) 28.48 (d) 2.848
12. 12.2.2 × 0.9 — where does the decimal point go? (a) 1.98 (b) 0.0198 (c) 19.8 (d) 0.198
13. 13.2.7 × 6 — where does the decimal point go? (a) 16.2 (b) 1.62 (c) 0.162 (d) 162
14. 14.0.92 × 31 — where does the decimal point go? (a) 0.2852 (b) 28.52 (c) 285.2 (d) 2.852
15. 15.4.9 × 0.2 — where does the decimal point go? (a) 0.98 (b) 0.098 (c) 0.0098 (d) 9.8
16. 16.4.4 × 3 — where does the decimal point go? (a) 132 (b) 13.2 (c) 1.32 (d) 0.132
17. 17.9.4 × 16 — where does the decimal point go? (a) 1504 (b) 150.4 (c) 1.504 (d) 15.04
18. 18.4.1 × 4.2 — where does the decimal point go? (a) 17.22 (b) 0.1722 (c) 172.2 (d) 1.722
19. 19.9.2 × 3 — where does the decimal point go? (a) 27.6 (b) 276 (c) 0.276 (d) 2.76
20. 20.0.84 × 7 — where does the decimal point go? (a) 5.88 (b) 0.0588 (c) 58.8 (d) 0.588
21. 21.0.73 × 6 — where does the decimal point go? (a) 0.0438 (b) 0.438 (c) 43.8 (d) 4.38
22. 22.0.42 × 37 — where does the decimal point go? (a) 15.54 (b) 0.1554 (c) 1.554 (d) 155.4
23. 23.0.17 × 9 — where does the decimal point go? (a) 1.53 (b) 0.0153 (c) 0.153 (d) 15.3
24. 24.0.12 × 8 — where does the decimal point go? (a) 0.96 (b) 0.096 (c) 0.0096 (d) 9.6
25. 25.0.58 × 0.4 — where does the decimal point go? (a) 0.232 (b) 0.00232 (c) 0.0232 (d) 2.32
26. 26.0.31 × 4 — where does the decimal point go? (a) 0.0124 (b) 0.124 (c) 1.24 (d) 12.4
27. 27.0.58 × 6 — where does the decimal point go? (a) 3.48 (b) 0.0348 (c) 34.8 (d) 0.348
28. 28.0.14 × 9 — where does the decimal point go? (a) 12.6 (b) 1.26 (c) 0.0126 (d) 0.126
29. 29.0.93 × 0.4 — where does the decimal point go? (a) 3.72 (b) 0.0372 (c) 0.372 (d) 0.00372
30. 30.0.38 × 1.8 — where does the decimal point go? (a) 0.00684 (b) 0.684 (c) 0.0684 (d) 6.84
31. 31.0.83 × 16 — where does the decimal point go? (a) 132.8 (b) 0.1328 (c) 1.328 (d) 13.28
32. 32.6.3 × 5 — where does the decimal point go? (a) 0.315 (b) 3.15 (c) 315 (d) 31.5
33. 33.2.3 × 3.8 — where does the decimal point go? (a) 0.0874 (b) 0.874 (c) 8.74 (d) 87.4
34. 34.0.62 × 2 — where does the decimal point go? (a) 1.24 (b) 0.0124 (c) 12.4 (d) 0.124
35. 35.0.61 × 7 — where does the decimal point go? (a) 0.427 (b) 4.27 (c) 42.7 (d) 0.0427
36. 36.6.3 × 0.8 — where does the decimal point go? (a) 5.04 (b) 0.0504 (c) 50.4 (d) 0.504
37. 37.2.1 × 3.3 — where does the decimal point go? (a) 69.3 (b) 0.693 (c) 6.93 (d) 0.0693
38. 38.8.6 × 3 — where does the decimal point go? (a) 25.8 (b) 0.258 (c) 258 (d) 2.58
39. 39.0.53 × 0.6 — where does the decimal point go? (a) 0.0318 (b) 3.18 (c) 0.318 (d) 0.00318
40. 40.7.1 × 4.5 — where does the decimal point go? (a) 3.195 (b) 0.3195 (c) 31.95 (d) 319.5

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