Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 936 · 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. 1.3.7 × 0.6 — where does the decimal point go? (a) 2.22 (b) 22.2 (c) 0.222 (d) 0.0222
2. 2.1.4 × 41 — where does the decimal point go? (a) 5.74 (b) 574 (c) 57.4 (d) 0.574
3. 3.0.57 × 32 — where does the decimal point go? (a) 18.24 (b) 1.824 (c) 0.1824 (d) 182.4
4. 4.0.62 × 0.6 — where does the decimal point go? (a) 0.00372 (b) 0.0372 (c) 3.72 (d) 0.372
5. 5.7.6 × 4 — where does the decimal point go? (a) 3.04 (b) 304 (c) 0.304 (d) 30.4
6. 6.8.7 × 39 — where does the decimal point go? (a) 339.3 (b) 33.93 (c) 3.393 (d) 3393
7. 7.0.45 × 0.9 — where does the decimal point go? (a) 4.05 (b) 0.00405 (c) 0.0405 (d) 0.405
8. 8.0.77 × 0.2 — where does the decimal point go? (a) 1.54 (b) 0.00154 (c) 0.0154 (d) 0.154
9. 9.9.7 × 9 — where does the decimal point go? (a) 87.3 (b) 873 (c) 8.73 (d) 0.873
10. 10.0.12 × 9 — where does the decimal point go? (a) 0.0108 (b) 0.108 (c) 1.08 (d) 10.8
11. 11.4.1 × 6 — where does the decimal point go? (a) 2.46 (b) 24.6 (c) 0.246 (d) 246
12. 12.9.1 × 29 — where does the decimal point go? (a) 26.39 (b) 2.639 (c) 263.9 (d) 2639
13. 13.0.51 × 2 — where does the decimal point go? (a) 1.02 (b) 0.0102 (c) 0.102 (d) 10.2
14. 14.4.1 × 5 — where does the decimal point go? (a) 2.05 (b) 0.205 (c) 205 (d) 20.5
15. 15.0.79 × 2 — where does the decimal point go? (a) 1.58 (b) 15.8 (c) 0.158 (d) 0.0158
16. 16.8.2 × 7 — where does the decimal point go? (a) 0.574 (b) 57.4 (c) 574 (d) 5.74
17. 17.0.33 × 7 — where does the decimal point go? (a) 23.1 (b) 2.31 (c) 0.0231 (d) 0.231
18. 18.0.52 × 3.2 — where does the decimal point go? (a) 0.01664 (b) 16.64 (c) 1.664 (d) 0.1664
19. 19.1.4 × 4 — where does the decimal point go? (a) 0.56 (b) 0.056 (c) 5.6 (d) 56
20. 20.3.7 × 6 — where does the decimal point go? (a) 2.22 (b) 222 (c) 0.222 (d) 22.2
21. 21.8.1 × 0.4 — where does the decimal point go? (a) 3.24 (b) 0.324 (c) 0.0324 (d) 32.4
22. 22.0.82 × 2.3 — where does the decimal point go? (a) 0.01886 (b) 1.886 (c) 0.1886 (d) 18.86
23. 23.6.1 × 6 — where does the decimal point go? (a) 0.366 (b) 36.6 (c) 366 (d) 3.66
24. 24.6.4 × 0.9 — where does the decimal point go? (a) 5.76 (b) 0.0576 (c) 0.576 (d) 57.6
25. 25.5.6 × 44 — where does the decimal point go? (a) 246.4 (b) 2.464 (c) 2464 (d) 24.64
26. 26.0.41 × 38 — where does the decimal point go? (a) 0.1558 (b) 15.58 (c) 155.8 (d) 1.558
27. 27.4.7 × 0.7 — where does the decimal point go? (a) 0.329 (b) 0.0329 (c) 32.9 (d) 3.29
28. 28.0.51 × 6 — where does the decimal point go? (a) 0.306 (b) 3.06 (c) 0.0306 (d) 30.6
29. 29.0.18 × 3.8 — where does the decimal point go? (a) 6.84 (b) 0.684 (c) 0.00684 (d) 0.0684
30. 30.2.6 × 0.3 — where does the decimal point go? (a) 0.78 (b) 0.078 (c) 0.0078 (d) 7.8
31. 31.0.29 × 0.4 — where does the decimal point go? (a) 0.0116 (b) 0.116 (c) 1.16 (d) 0.00116
32. 32.0.95 × 41 — where does the decimal point go? (a) 389.5 (b) 3.895 (c) 38.95 (d) 0.3895
33. 33.4.7 × 1.3 — where does the decimal point go? (a) 6.11 (b) 0.611 (c) 0.0611 (d) 61.1
34. 34.0.67 × 0.4 — where does the decimal point go? (a) 0.268 (b) 0.0268 (c) 2.68 (d) 0.00268
35. 35.2.3 × 0.3 — where does the decimal point go? (a) 0.0069 (b) 0.069 (c) 6.9 (d) 0.69
36. 36.8.8 × 2 — where does the decimal point go? (a) 176 (b) 17.6 (c) 1.76 (d) 0.176
37. 37.0.15 × 39 — where does the decimal point go? (a) 5.85 (b) 58.5 (c) 0.0585 (d) 0.585
38. 38.6.3 × 4 — where does the decimal point go? (a) 2.52 (b) 0.252 (c) 252 (d) 25.2
39. 39.3.7 × 0.4 — where does the decimal point go? (a) 1.48 (b) 0.0148 (c) 14.8 (d) 0.148
40. 40.6.7 × 2.2 — where does the decimal point go? (a) 14.74 (b) 0.1474 (c) 147.4 (d) 1.474

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