Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 602 · 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. 1.0.52 × 3 — where does the decimal point go? (a) 1.56 (b) 15.6 (c) 0.156 (d) 0.0156
2. 2.0.73 × 0.5 — where does the decimal point go? (a) 0.00365 (b) 0.0365 (c) 3.65 (d) 0.365
3. 3.6.3 × 33 — where does the decimal point go? (a) 20.79 (b) 2.079 (c) 207.9 (d) 2079
4. 4.0.48 × 2.9 — where does the decimal point go? (a) 1.392 (b) 0.01392 (c) 0.1392 (d) 13.92
5. 5.5.2 × 4.4 — where does the decimal point go? (a) 22.88 (b) 0.2288 (c) 2.288 (d) 228.8
6. 6.5.1 × 3 — where does the decimal point go? (a) 0.153 (b) 1.53 (c) 153 (d) 15.3
7. 7.7.9 × 3.1 — where does the decimal point go? (a) 244.9 (b) 2.449 (c) 24.49 (d) 0.2449
8. 8.0.99 × 6 — where does the decimal point go? (a) 0.594 (b) 5.94 (c) 59.4 (d) 0.0594
9. 9.7.2 × 18 — where does the decimal point go? (a) 12.96 (b) 1296 (c) 1.296 (d) 129.6
10. 10.0.47 × 0.2 — where does the decimal point go? (a) 0.094 (b) 0.94 (c) 0.0094 (d) 0.00094
11. 11.3.8 × 0.8 — where does the decimal point go? (a) 0.304 (b) 30.4 (c) 3.04 (d) 0.0304
12. 12.0.78 × 3 — where does the decimal point go? (a) 0.234 (b) 2.34 (c) 0.0234 (d) 23.4
13. 13.8.1 × 0.9 — where does the decimal point go? (a) 72.9 (b) 7.29 (c) 0.0729 (d) 0.729
14. 14.2.8 × 1.6 — where does the decimal point go? (a) 44.8 (b) 0.448 (c) 0.0448 (d) 4.48
15. 15.0.81 × 3.9 — where does the decimal point go? (a) 31.59 (b) 0.3159 (c) 0.03159 (d) 3.159
16. 16.0.41 × 27 — where does the decimal point go? (a) 11.07 (b) 1.107 (c) 110.7 (d) 0.1107
17. 17.0.27 × 1.6 — where does the decimal point go? (a) 0.0432 (b) 0.432 (c) 0.00432 (d) 4.32
18. 18.5.7 × 6 — where does the decimal point go? (a) 3.42 (b) 34.2 (c) 342 (d) 0.342
19. 19.8.5 × 9 — where does the decimal point go? (a) 765 (b) 0.765 (c) 76.5 (d) 7.65
20. 20.0.44 × 6 — where does the decimal point go? (a) 0.264 (b) 26.4 (c) 0.0264 (d) 2.64
21. 21.8.6 × 0.9 — where does the decimal point go? (a) 0.774 (b) 0.0774 (c) 7.74 (d) 77.4
22. 22.0.12 × 9 — where does the decimal point go? (a) 0.0108 (b) 0.108 (c) 1.08 (d) 10.8
23. 23.1.4 × 42 — where does the decimal point go? (a) 588 (b) 5.88 (c) 58.8 (d) 0.588
24. 24.0.19 × 2.2 — where does the decimal point go? (a) 0.0418 (b) 4.18 (c) 0.418 (d) 0.00418
25. 25.9.9 × 21 — where does the decimal point go? (a) 2079 (b) 207.9 (c) 20.79 (d) 2.079
26. 26.1.7 × 4 — where does the decimal point go? (a) 0.68 (b) 6.8 (c) 0.068 (d) 68
27. 27.0.19 × 34 — where does the decimal point go? (a) 64.6 (b) 0.0646 (c) 6.46 (d) 0.646
28. 28.0.58 × 6 — where does the decimal point go? (a) 0.348 (b) 3.48 (c) 0.0348 (d) 34.8
29. 29.1.2 × 1.8 — where does the decimal point go? (a) 0.0216 (b) 21.6 (c) 2.16 (d) 0.216
30. 30.6.7 × 39 — where does the decimal point go? (a) 261.3 (b) 2.613 (c) 26.13 (d) 2613
31. 31.1.6 × 1.9 — where does the decimal point go? (a) 0.0304 (b) 30.4 (c) 0.304 (d) 3.04
32. 32.2.9 × 0.4 — where does the decimal point go? (a) 1.16 (b) 0.116 (c) 11.6 (d) 0.0116
33. 33.6.5 × 31 — where does the decimal point go? (a) 20.15 (b) 201.5 (c) 2.015 (d) 2015
34. 34.0.97 × 0.3 — where does the decimal point go? (a) 2.91 (b) 0.0291 (c) 0.291 (d) 0.00291
35. 35.0.42 × 7 — where does the decimal point go? (a) 2.94 (b) 29.4 (c) 0.294 (d) 0.0294
36. 36.0.69 × 9 — where does the decimal point go? (a) 62.1 (b) 0.0621 (c) 0.621 (d) 6.21
37. 37.2.7 × 0.9 — where does the decimal point go? (a) 24.3 (b) 0.0243 (c) 0.243 (d) 2.43
38. 38.0.71 × 7 — where does the decimal point go? (a) 4.97 (b) 49.7 (c) 0.497 (d) 0.0497
39. 39.8.2 × 9 — where does the decimal point go? (a) 0.738 (b) 73.8 (c) 738 (d) 7.38
40. 40.0.91 × 5 — where does the decimal point go? (a) 4.55 (b) 0.0455 (c) 0.455 (d) 45.5

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