Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 369 · 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. 1.0.31 × 2 — where does the decimal point go? (a) 0.062 (b) 0.62 (c) 0.0062 (d) 6.2
2. 2.8.3 × 4.8 — where does the decimal point go? (a) 39.84 (b) 0.3984 (c) 398.4 (d) 3.984
3. 3.7.2 × 0.3 — where does the decimal point go? (a) 0.0216 (b) 0.216 (c) 21.6 (d) 2.16
4. 4.1.4 × 27 — where does the decimal point go? (a) 37.8 (b) 3.78 (c) 0.378 (d) 378
5. 5.0.88 × 6 — where does the decimal point go? (a) 5.28 (b) 52.8 (c) 0.0528 (d) 0.528
6. 6.7.3 × 2 — where does the decimal point go? (a) 1.46 (b) 14.6 (c) 0.146 (d) 146
7. 7.5.4 × 9 — where does the decimal point go? (a) 48.6 (b) 4.86 (c) 486 (d) 0.486
8. 8.9.2 × 29 — where does the decimal point go? (a) 2.668 (b) 26.68 (c) 2668 (d) 266.8
9. 9.0.18 × 8 — where does the decimal point go? (a) 0.144 (b) 14.4 (c) 0.0144 (d) 1.44
10. 10.0.49 × 25 — where does the decimal point go? (a) 0.1225 (b) 122.5 (c) 12.25 (d) 1.225
11. 11.0.84 × 19 — where does the decimal point go? (a) 0.1596 (b) 1.596 (c) 159.6 (d) 15.96
12. 12.2.6 × 0.6 — where does the decimal point go? (a) 0.0156 (b) 1.56 (c) 0.156 (d) 15.6
13. 13.0.68 × 9 — where does the decimal point go? (a) 61.2 (b) 0.0612 (c) 0.612 (d) 6.12
14. 14.0.27 × 2.6 — where does the decimal point go? (a) 0.00702 (b) 7.02 (c) 0.0702 (d) 0.702
15. 15.2.7 × 48 — where does the decimal point go? (a) 1.296 (b) 1296 (c) 129.6 (d) 12.96
16. 16.3.5 × 2.7 — where does the decimal point go? (a) 94.5 (b) 0.0945 (c) 9.45 (d) 0.945
17. 17.0.39 × 2.9 — where does the decimal point go? (a) 1.131 (b) 11.31 (c) 0.1131 (d) 0.01131
18. 18.0.17 × 0.6 — where does the decimal point go? (a) 0.102 (b) 0.00102 (c) 1.02 (d) 0.0102
19. 19.4.1 × 0.2 — where does the decimal point go? (a) 0.82 (b) 0.082 (c) 0.0082 (d) 8.2
20. 20.0.32 × 27 — where does the decimal point go? (a) 8.64 (b) 0.864 (c) 86.4 (d) 0.0864
21. 21.0.94 × 26 — where does the decimal point go? (a) 24.44 (b) 244.4 (c) 2.444 (d) 0.2444
22. 22.0.28 × 22 — where does the decimal point go? (a) 61.6 (b) 6.16 (c) 0.616 (d) 0.0616
23. 23.3.5 × 7 — where does the decimal point go? (a) 24.5 (b) 0.245 (c) 2.45 (d) 245
24. 24.0.15 × 7 — where does the decimal point go? (a) 10.5 (b) 0.0105 (c) 1.05 (d) 0.105
25. 25.3.5 × 0.3 — where does the decimal point go? (a) 0.0105 (b) 1.05 (c) 0.105 (d) 10.5
26. 26.0.18 × 2.4 — where does the decimal point go? (a) 0.00432 (b) 0.432 (c) 0.0432 (d) 4.32
27. 27.6.4 × 6 — where does the decimal point go? (a) 38.4 (b) 384 (c) 3.84 (d) 0.384
28. 28.8.2 × 3 — where does the decimal point go? (a) 0.246 (b) 2.46 (c) 246 (d) 24.6
29. 29.2.3 × 4.4 — where does the decimal point go? (a) 10.12 (b) 1.012 (c) 0.1012 (d) 101.2
30. 30.3.2 × 2.3 — where does the decimal point go? (a) 0.0736 (b) 73.6 (c) 7.36 (d) 0.736
31. 31.0.53 × 8 — where does the decimal point go? (a) 4.24 (b) 0.424 (c) 0.0424 (d) 42.4
32. 32.2.8 × 2 — where does the decimal point go? (a) 56 (b) 5.6 (c) 0.56 (d) 0.056
33. 33.5.8 × 7 — where does the decimal point go? (a) 0.406 (b) 40.6 (c) 406 (d) 4.06
34. 34.3.8 × 2 — where does the decimal point go? (a) 7.6 (b) 0.76 (c) 0.076 (d) 76
35. 35.2.2 × 9 — where does the decimal point go? (a) 19.8 (b) 198 (c) 1.98 (d) 0.198
36. 36.2.3 × 0.7 — where does the decimal point go? (a) 0.0161 (b) 16.1 (c) 0.161 (d) 1.61
37. 37.0.21 × 9 — where does the decimal point go? (a) 1.89 (b) 0.189 (c) 0.0189 (d) 18.9
38. 38.9.3 × 0.4 — where does the decimal point go? (a) 37.2 (b) 0.0372 (c) 3.72 (d) 0.372
39. 39.0.46 × 1.9 — where does the decimal point go? (a) 0.874 (b) 0.00874 (c) 0.0874 (d) 8.74
40. 40.0.32 × 0.6 — where does the decimal point go? (a) 0.0192 (b) 0.192 (c) 0.00192 (d) 1.92

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