Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 239 · 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. 1.7.6 × 11 — where does the decimal point go? (a) 0.836 (b) 8.36 (c) 83.6 (d) 836
2. 2.6.1 × 1.2 — where does the decimal point go? (a) 0.732 (b) 0.0732 (c) 7.32 (d) 73.2
3. 3.0.76 × 1.8 — where does the decimal point go? (a) 1.368 (b) 13.68 (c) 0.01368 (d) 0.1368
4. 4.0.32 × 3 — where does the decimal point go? (a) 0.96 (b) 0.0096 (c) 0.096 (d) 9.6
5. 5.4.7 × 42 — where does the decimal point go? (a) 19.74 (b) 1974 (c) 197.4 (d) 1.974
6. 6.6.9 × 0.5 — where does the decimal point go? (a) 0.0345 (b) 0.345 (c) 34.5 (d) 3.45
7. 7.1.7 × 3.1 — where does the decimal point go? (a) 0.0527 (b) 0.527 (c) 52.7 (d) 5.27
8. 8.3.6 × 36 — where does the decimal point go? (a) 1.296 (b) 1296 (c) 12.96 (d) 129.6
9. 9.3.8 × 2 — where does the decimal point go? (a) 0.076 (b) 0.76 (c) 76 (d) 7.6
10. 10.3.3 × 3 — where does the decimal point go? (a) 99 (b) 9.9 (c) 0.99 (d) 0.099
11. 11.8.1 × 3.6 — where does the decimal point go? (a) 291.6 (b) 2.916 (c) 29.16 (d) 0.2916
12. 12.0.32 × 0.9 — where does the decimal point go? (a) 0.288 (b) 0.00288 (c) 0.0288 (d) 2.88
13. 13.9.5 × 47 — where does the decimal point go? (a) 446.5 (b) 4465 (c) 4.465 (d) 44.65
14. 14.4.6 × 4.1 — where does the decimal point go? (a) 1.886 (b) 0.1886 (c) 188.6 (d) 18.86
15. 15.0.64 × 44 — where does the decimal point go? (a) 2.816 (b) 0.2816 (c) 28.16 (d) 281.6
16. 16.6.8 × 0.4 — where does the decimal point go? (a) 27.2 (b) 0.272 (c) 2.72 (d) 0.0272
17. 17.5.8 × 0.3 — where does the decimal point go? (a) 0.0174 (b) 0.174 (c) 17.4 (d) 1.74
18. 18.0.34 × 0.2 — where does the decimal point go? (a) 0.0068 (b) 0.068 (c) 0.00068 (d) 0.68
19. 19.3.8 × 0.2 — where does the decimal point go? (a) 0.76 (b) 7.6 (c) 0.0076 (d) 0.076
20. 20.0.38 × 6 — where does the decimal point go? (a) 22.8 (b) 0.228 (c) 0.0228 (d) 2.28
21. 21.7.4 × 0.8 — where does the decimal point go? (a) 5.92 (b) 59.2 (c) 0.592 (d) 0.0592
22. 22.0.84 × 44 — where does the decimal point go? (a) 36.96 (b) 0.3696 (c) 3.696 (d) 369.6
23. 23.0.94 × 2.6 — where does the decimal point go? (a) 24.44 (b) 2.444 (c) 0.02444 (d) 0.2444
24. 24.0.19 × 9 — where does the decimal point go? (a) 0.0171 (b) 17.1 (c) 1.71 (d) 0.171
25. 25.9.8 × 0.4 — where does the decimal point go? (a) 0.0392 (b) 3.92 (c) 39.2 (d) 0.392
26. 26.0.94 × 2 — where does the decimal point go? (a) 0.188 (b) 18.8 (c) 1.88 (d) 0.0188
27. 27.0.14 × 4 — where does the decimal point go? (a) 0.56 (b) 0.056 (c) 0.0056 (d) 5.6
28. 28.0.29 × 24 — where does the decimal point go? (a) 0.696 (b) 6.96 (c) 0.0696 (d) 69.6
29. 29.0.31 × 3.6 — where does the decimal point go? (a) 0.1116 (b) 0.01116 (c) 11.16 (d) 1.116
30. 30.0.53 × 3 — where does the decimal point go? (a) 0.0159 (b) 0.159 (c) 1.59 (d) 15.9
31. 31.4.3 × 42 — where does the decimal point go? (a) 180.6 (b) 1.806 (c) 18.06 (d) 1806
32. 32.0.19 × 2.2 — where does the decimal point go? (a) 0.00418 (b) 0.418 (c) 0.0418 (d) 4.18
33. 33.9.7 × 0.2 — where does the decimal point go? (a) 0.194 (b) 19.4 (c) 0.0194 (d) 1.94
34. 34.0.54 × 6 — where does the decimal point go? (a) 0.0324 (b) 0.324 (c) 32.4 (d) 3.24
35. 35.0.36 × 6 — where does the decimal point go? (a) 2.16 (b) 0.0216 (c) 0.216 (d) 21.6
36. 36.0.24 × 2 — where does the decimal point go? (a) 0.48 (b) 4.8 (c) 0.048 (d) 0.0048
37. 37.1.4 × 4.1 — where does the decimal point go? (a) 0.574 (b) 5.74 (c) 0.0574 (d) 57.4
38. 38.9.1 × 6 — where does the decimal point go? (a) 546 (b) 54.6 (c) 0.546 (d) 5.46
39. 39.9.5 × 21 — where does the decimal point go? (a) 1.995 (b) 199.5 (c) 19.95 (d) 1995
40. 40.2.2 × 42 — where does the decimal point go? (a) 92.4 (b) 9.24 (c) 0.924 (d) 924

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