Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 633 · 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. 1.8.7 × 2 — where does the decimal point go? (a) 17.4 (b) 1.74 (c) 174 (d) 0.174
2. 2.5.8 × 2.1 — where does the decimal point go? (a) 0.1218 (b) 121.8 (c) 1.218 (d) 12.18
3. 3.3.6 × 8 — where does the decimal point go? (a) 0.288 (b) 2.88 (c) 28.8 (d) 288
4. 4.7.6 × 0.9 — where does the decimal point go? (a) 0.0684 (b) 68.4 (c) 0.684 (d) 6.84
5. 5.0.82 × 23 — where does the decimal point go? (a) 0.1886 (b) 18.86 (c) 1.886 (d) 188.6
6. 6.2.8 × 2.2 — where does the decimal point go? (a) 0.0616 (b) 6.16 (c) 61.6 (d) 0.616
7. 7.7.3 × 13 — where does the decimal point go? (a) 94.9 (b) 0.949 (c) 949 (d) 9.49
8. 8.0.95 × 1.1 — where does the decimal point go? (a) 0.1045 (b) 0.01045 (c) 1.045 (d) 10.45
9. 9.0.38 × 4.1 — where does the decimal point go? (a) 0.01558 (b) 15.58 (c) 0.1558 (d) 1.558
10. 10.2.1 × 3 — where does the decimal point go? (a) 6.3 (b) 0.63 (c) 0.063 (d) 63
11. 11.8.3 × 0.3 — where does the decimal point go? (a) 0.249 (b) 24.9 (c) 0.0249 (d) 2.49
12. 12.1.8 × 3.6 — where does the decimal point go? (a) 64.8 (b) 0.0648 (c) 6.48 (d) 0.648
13. 13.0.93 × 0.6 — where does the decimal point go? (a) 0.00558 (b) 5.58 (c) 0.558 (d) 0.0558
14. 14.0.14 × 4.6 — where does the decimal point go? (a) 0.0644 (b) 6.44 (c) 0.644 (d) 0.00644
15. 15.0.83 × 0.5 — where does the decimal point go? (a) 0.415 (b) 0.00415 (c) 0.0415 (d) 4.15
16. 16.0.21 × 0.7 — where does the decimal point go? (a) 0.00147 (b) 1.47 (c) 0.0147 (d) 0.147
17. 17.2.9 × 1.7 — where does the decimal point go? (a) 49.3 (b) 4.93 (c) 0.493 (d) 0.0493
18. 18.0.46 × 0.7 — where does the decimal point go? (a) 0.0322 (b) 3.22 (c) 0.00322 (d) 0.322
19. 19.0.84 × 28 — where does the decimal point go? (a) 0.2352 (b) 235.2 (c) 23.52 (d) 2.352
20. 20.2.8 × 26 — where does the decimal point go? (a) 7.28 (b) 0.728 (c) 728 (d) 72.8
21. 21.0.49 × 4.6 — where does the decimal point go? (a) 22.54 (b) 2.254 (c) 0.2254 (d) 0.02254
22. 22.6.8 × 4 — where does the decimal point go? (a) 2.72 (b) 0.272 (c) 27.2 (d) 272
23. 23.3.7 × 0.6 — where does the decimal point go? (a) 0.0222 (b) 0.222 (c) 2.22 (d) 22.2
24. 24.0.48 × 0.3 — where does the decimal point go? (a) 0.0144 (b) 1.44 (c) 0.144 (d) 0.00144
25. 25.4.5 × 9 — where does the decimal point go? (a) 0.405 (b) 40.5 (c) 405 (d) 4.05
26. 26.3.7 × 18 — where does the decimal point go? (a) 666 (b) 66.6 (c) 6.66 (d) 0.666
27. 27.5.9 × 2.6 — where does the decimal point go? (a) 153.4 (b) 0.1534 (c) 15.34 (d) 1.534
28. 28.7.2 × 3.3 — where does the decimal point go? (a) 2.376 (b) 237.6 (c) 0.2376 (d) 23.76
29. 29.0.15 × 33 — where does the decimal point go? (a) 0.0495 (b) 0.495 (c) 4.95 (d) 49.5
30. 30.0.12 × 0.2 — where does the decimal point go? (a) 0.00024 (b) 0.0024 (c) 0.24 (d) 0.024
31. 31.0.87 × 35 — where does the decimal point go? (a) 30.45 (b) 0.3045 (c) 3.045 (d) 304.5
32. 32.4.6 × 3.3 — where does the decimal point go? (a) 15.18 (b) 0.1518 (c) 1.518 (d) 151.8
33. 33.0.17 × 1.7 — where does the decimal point go? (a) 0.0289 (b) 2.89 (c) 0.00289 (d) 0.289
34. 34.0.62 × 46 — where does the decimal point go? (a) 2.852 (b) 0.2852 (c) 285.2 (d) 28.52
35. 35.0.23 × 2.7 — where does the decimal point go? (a) 0.621 (b) 0.0621 (c) 6.21 (d) 0.00621
36. 36.0.47 × 49 — where does the decimal point go? (a) 0.2303 (b) 23.03 (c) 230.3 (d) 2.303
37. 37.8.9 × 2.4 — where does the decimal point go? (a) 0.2136 (b) 2.136 (c) 21.36 (d) 213.6
38. 38.0.62 × 0.3 — where does the decimal point go? (a) 0.00186 (b) 0.0186 (c) 0.186 (d) 1.86
39. 39.7.4 × 31 — where does the decimal point go? (a) 2294 (b) 229.4 (c) 2.294 (d) 22.94
40. 40.0.12 × 0.9 — where does the decimal point go? (a) 0.0108 (b) 1.08 (c) 0.108 (d) 0.00108

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