Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 54 · 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. 1.0.12 × 3 — where does the decimal point go? (a) 3.6 (b) 0.036 (c) 0.0036 (d) 0.36
2. 2.4.1 × 46 — where does the decimal point go? (a) 18.86 (b) 1886 (c) 188.6 (d) 1.886
3. 3.3.3 × 7 — where does the decimal point go? (a) 231 (b) 0.231 (c) 23.1 (d) 2.31
4. 4.0.59 × 4.5 — where does the decimal point go? (a) 2.655 (b) 0.2655 (c) 26.55 (d) 0.02655
5. 5.0.14 × 0.6 — where does the decimal point go? (a) 0.084 (b) 0.00084 (c) 0.0084 (d) 0.84
6. 6.4.7 × 0.3 — where does the decimal point go? (a) 1.41 (b) 0.141 (c) 14.1 (d) 0.0141
7. 7.0.54 × 9 — where does the decimal point go? (a) 48.6 (b) 4.86 (c) 0.486 (d) 0.0486
8. 8.2.4 × 8 — where does the decimal point go? (a) 19.2 (b) 0.192 (c) 192 (d) 1.92
9. 9.0.64 × 3.7 — where does the decimal point go? (a) 23.68 (b) 2.368 (c) 0.2368 (d) 0.02368
10. 10.0.76 × 31 — where does the decimal point go? (a) 23.56 (b) 0.2356 (c) 2.356 (d) 235.6
11. 11.0.28 × 6 — where does the decimal point go? (a) 1.68 (b) 0.168 (c) 0.0168 (d) 16.8
12. 12.0.15 × 0.3 — where does the decimal point go? (a) 0.0045 (b) 0.00045 (c) 0.45 (d) 0.045
13. 13.0.23 × 0.9 — where does the decimal point go? (a) 0.0207 (b) 0.00207 (c) 2.07 (d) 0.207
14. 14.1.8 × 27 — where does the decimal point go? (a) 0.486 (b) 4.86 (c) 486 (d) 48.6
15. 15.0.36 × 2.4 — where does the decimal point go? (a) 0.00864 (b) 0.0864 (c) 0.864 (d) 8.64
16. 16.1.9 × 0.4 — where does the decimal point go? (a) 0.0076 (b) 0.76 (c) 7.6 (d) 0.076
17. 17.0.96 × 1.3 — where does the decimal point go? (a) 0.1248 (b) 0.01248 (c) 12.48 (d) 1.248
18. 18.0.13 × 5 — where does the decimal point go? (a) 0.65 (b) 0.0065 (c) 0.065 (d) 6.5
19. 19.0.72 × 36 — where does the decimal point go? (a) 0.2592 (b) 2.592 (c) 25.92 (d) 259.2
20. 20.8.3 × 0.2 — where does the decimal point go? (a) 0.166 (b) 0.0166 (c) 16.6 (d) 1.66
21. 21.0.67 × 46 — where does the decimal point go? (a) 0.3082 (b) 3.082 (c) 30.82 (d) 308.2
22. 22.0.58 × 44 — where does the decimal point go? (a) 2.552 (b) 0.2552 (c) 25.52 (d) 255.2
23. 23.0.86 × 4 — where does the decimal point go? (a) 0.0344 (b) 34.4 (c) 3.44 (d) 0.344
24. 24.8.9 × 3 — where does the decimal point go? (a) 26.7 (b) 0.267 (c) 267 (d) 2.67
25. 25.5.8 × 7 — where does the decimal point go? (a) 40.6 (b) 4.06 (c) 406 (d) 0.406
26. 26.0.86 × 44 — where does the decimal point go? (a) 0.3784 (b) 3.784 (c) 378.4 (d) 37.84
27. 27.0.23 × 0.2 — where does the decimal point go? (a) 0.46 (b) 0.00046 (c) 0.046 (d) 0.0046
28. 28.4.4 × 2.4 — where does the decimal point go? (a) 105.6 (b) 0.1056 (c) 10.56 (d) 1.056
29. 29.2.3 × 28 — where does the decimal point go? (a) 6.44 (b) 0.644 (c) 64.4 (d) 644
30. 30.5.5 × 9 — where does the decimal point go? (a) 495 (b) 49.5 (c) 4.95 (d) 0.495
31. 31.1.2 × 19 — where does the decimal point go? (a) 228 (b) 22.8 (c) 2.28 (d) 0.228
32. 32.8.2 × 7 — where does the decimal point go? (a) 0.574 (b) 574 (c) 57.4 (d) 5.74
33. 33.0.31 × 0.8 — where does the decimal point go? (a) 2.48 (b) 0.0248 (c) 0.00248 (d) 0.248
34. 34.0.74 × 12 — where does the decimal point go? (a) 0.0888 (b) 88.8 (c) 0.888 (d) 8.88
35. 35.7.9 × 0.6 — where does the decimal point go? (a) 0.474 (b) 0.0474 (c) 47.4 (d) 4.74
36. 36.2.7 × 9 — where does the decimal point go? (a) 24.3 (b) 2.43 (c) 243 (d) 0.243
37. 37.8.4 × 14 — where does the decimal point go? (a) 11.76 (b) 1176 (c) 117.6 (d) 1.176
38. 38.2.5 × 3 — where does the decimal point go? (a) 7.5 (b) 75 (c) 0.075 (d) 0.75
39. 39.0.39 × 0.3 — where does the decimal point go? (a) 0.117 (b) 1.17 (c) 0.0117 (d) 0.00117
40. 40.6.2 × 0.8 — where does the decimal point go? (a) 4.96 (b) 49.6 (c) 0.496 (d) 0.0496

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