Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 567 · 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. 1.0.24 × 0.7 — where does the decimal point go? (a) 0.0168 (b) 1.68 (c) 0.168 (d) 0.00168
2. 2.0.87 × 0.2 — where does the decimal point go? (a) 1.74 (b) 0.00174 (c) 0.0174 (d) 0.174
3. 3.2.5 × 0.7 — where does the decimal point go? (a) 0.0175 (b) 0.175 (c) 17.5 (d) 1.75
4. 4.1.7 × 0.5 — where does the decimal point go? (a) 0.085 (b) 0.85 (c) 0.0085 (d) 8.5
5. 5.0.58 × 0.3 — where does the decimal point go? (a) 0.00174 (b) 1.74 (c) 0.0174 (d) 0.174
6. 6.0.56 × 2 — where does the decimal point go? (a) 0.0112 (b) 0.112 (c) 11.2 (d) 1.12
7. 7.0.45 × 37 — where does the decimal point go? (a) 1.665 (b) 16.65 (c) 166.5 (d) 0.1665
8. 8.5.8 × 4.1 — where does the decimal point go? (a) 23.78 (b) 237.8 (c) 0.2378 (d) 2.378
9. 9.5.2 × 24 — where does the decimal point go? (a) 124.8 (b) 12.48 (c) 1.248 (d) 1248
10. 10.0.51 × 49 — where does the decimal point go? (a) 0.2499 (b) 24.99 (c) 2.499 (d) 249.9
11. 11.6.1 × 0.2 — where does the decimal point go? (a) 12.2 (b) 0.0122 (c) 0.122 (d) 1.22
12. 12.0.13 × 3 — where does the decimal point go? (a) 0.0039 (b) 0.39 (c) 0.039 (d) 3.9
13. 13.5.3 × 4.6 — where does the decimal point go? (a) 0.2438 (b) 24.38 (c) 2.438 (d) 243.8
14. 14.0.16 × 0.2 — where does the decimal point go? (a) 0.0032 (b) 0.00032 (c) 0.32 (d) 0.032
15. 15.8.9 × 39 — where does the decimal point go? (a) 3.471 (b) 347.1 (c) 3471 (d) 34.71
16. 16.0.88 × 0.8 — where does the decimal point go? (a) 7.04 (b) 0.0704 (c) 0.00704 (d) 0.704
17. 17.0.66 × 7 — where does the decimal point go? (a) 46.2 (b) 0.0462 (c) 4.62 (d) 0.462
18. 18.0.79 × 0.2 — where does the decimal point go? (a) 1.58 (b) 0.00158 (c) 0.0158 (d) 0.158
19. 19.0.14 × 18 — where does the decimal point go? (a) 0.252 (b) 2.52 (c) 0.0252 (d) 25.2
20. 20.1.7 × 0.8 — where does the decimal point go? (a) 1.36 (b) 13.6 (c) 0.136 (d) 0.0136
21. 21.1.6 × 3.1 — where does the decimal point go? (a) 0.0496 (b) 0.496 (c) 4.96 (d) 49.6
22. 22.0.37 × 0.4 — where does the decimal point go? (a) 0.0148 (b) 0.00148 (c) 0.148 (d) 1.48
23. 23.6.1 × 0.9 — where does the decimal point go? (a) 5.49 (b) 0.0549 (c) 0.549 (d) 54.9
24. 24.0.76 × 44 — where does the decimal point go? (a) 3.344 (b) 0.3344 (c) 334.4 (d) 33.44
25. 25.0.37 × 9 — where does the decimal point go? (a) 0.333 (b) 3.33 (c) 33.3 (d) 0.0333
26. 26.9.7 × 4.5 — where does the decimal point go? (a) 4.365 (b) 0.4365 (c) 43.65 (d) 436.5
27. 27.3.6 × 3 — where does the decimal point go? (a) 0.108 (b) 1.08 (c) 10.8 (d) 108
28. 28.2.7 × 2.8 — where does the decimal point go? (a) 0.756 (b) 0.0756 (c) 75.6 (d) 7.56
29. 29.9.8 × 9 — where does the decimal point go? (a) 0.882 (b) 882 (c) 8.82 (d) 88.2
30. 30.8.4 × 19 — where does the decimal point go? (a) 1596 (b) 159.6 (c) 15.96 (d) 1.596
31. 31.2.1 × 0.7 — where does the decimal point go? (a) 1.47 (b) 0.147 (c) 0.0147 (d) 14.7
32. 32.9.4 × 0.4 — where does the decimal point go? (a) 37.6 (b) 0.0376 (c) 3.76 (d) 0.376
33. 33.0.24 × 0.8 — where does the decimal point go? (a) 0.192 (b) 0.0192 (c) 0.00192 (d) 1.92
34. 34.0.96 × 42 — where does the decimal point go? (a) 4.032 (b) 403.2 (c) 0.4032 (d) 40.32
35. 35.9.1 × 0.9 — where does the decimal point go? (a) 8.19 (b) 0.0819 (c) 81.9 (d) 0.819
36. 36.5.4 × 8 — where does the decimal point go? (a) 43.2 (b) 4.32 (c) 432 (d) 0.432
37. 37.0.71 × 49 — where does the decimal point go? (a) 0.3479 (b) 347.9 (c) 34.79 (d) 3.479
38. 38.0.25 × 5 — where does the decimal point go? (a) 12.5 (b) 0.0125 (c) 1.25 (d) 0.125
39. 39.0.18 × 0.2 — where does the decimal point go? (a) 0.0036 (b) 0.036 (c) 0.36 (d) 0.00036
40. 40.7.2 × 3.6 — where does the decimal point go? (a) 259.2 (b) 25.92 (c) 0.2592 (d) 2.592

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