Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 299 · 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. 1.7.5 × 0.3 — where does the decimal point go? (a) 2.25 (b) 22.5 (c) 0.225 (d) 0.0225
2. 2.2.4 × 3.8 — where does the decimal point go? (a) 9.12 (b) 0.0912 (c) 91.2 (d) 0.912
3. 3.5.2 × 2 — where does the decimal point go? (a) 104 (b) 10.4 (c) 1.04 (d) 0.104
4. 4.1.8 × 7 — where does the decimal point go? (a) 126 (b) 12.6 (c) 1.26 (d) 0.126
5. 5.0.63 × 0.9 — where does the decimal point go? (a) 0.0567 (b) 0.00567 (c) 5.67 (d) 0.567
6. 6.0.84 × 44 — where does the decimal point go? (a) 36.96 (b) 3.696 (c) 0.3696 (d) 369.6
7. 7.0.72 × 3.8 — where does the decimal point go? (a) 0.02736 (b) 2.736 (c) 0.2736 (d) 27.36
8. 8.0.55 × 17 — where does the decimal point go? (a) 0.0935 (b) 93.5 (c) 0.935 (d) 9.35
9. 9.8.2 × 4.4 — where does the decimal point go? (a) 36.08 (b) 0.3608 (c) 360.8 (d) 3.608
10. 10.0.39 × 3 — where does the decimal point go? (a) 0.0117 (b) 11.7 (c) 1.17 (d) 0.117
11. 11.9.8 × 13 — where does the decimal point go? (a) 1274 (b) 12.74 (c) 127.4 (d) 1.274
12. 12.7.6 × 0.9 — where does the decimal point go? (a) 6.84 (b) 0.0684 (c) 68.4 (d) 0.684
13. 13.0.17 × 0.2 — where does the decimal point go? (a) 0.034 (b) 0.0034 (c) 0.00034 (d) 0.34
14. 14.1.8 × 9 — where does the decimal point go? (a) 1.62 (b) 0.162 (c) 162 (d) 16.2
15. 15.4.3 × 0.3 — where does the decimal point go? (a) 1.29 (b) 0.0129 (c) 0.129 (d) 12.9
16. 16.3.5 × 3.9 — where does the decimal point go? (a) 13.65 (b) 136.5 (c) 0.1365 (d) 1.365
17. 17.0.65 × 0.3 — where does the decimal point go? (a) 1.95 (b) 0.0195 (c) 0.00195 (d) 0.195
18. 18.9.3 × 38 — where does the decimal point go? (a) 3.534 (b) 3534 (c) 35.34 (d) 353.4
19. 19.0.23 × 0.6 — where does the decimal point go? (a) 0.0138 (b) 0.138 (c) 0.00138 (d) 1.38
20. 20.0.93 × 0.7 — where does the decimal point go? (a) 0.651 (b) 0.0651 (c) 0.00651 (d) 6.51
21. 21.0.51 × 2.7 — where does the decimal point go? (a) 1.377 (b) 0.01377 (c) 13.77 (d) 0.1377
22. 22.1.4 × 2.7 — where does the decimal point go? (a) 37.8 (b) 3.78 (c) 0.0378 (d) 0.378
23. 23.4.4 × 0.2 — where does the decimal point go? (a) 0.88 (b) 0.088 (c) 0.0088 (d) 8.8
24. 24.5.6 × 0.9 — where does the decimal point go? (a) 50.4 (b) 5.04 (c) 0.0504 (d) 0.504
25. 25.2.6 × 9 — where does the decimal point go? (a) 23.4 (b) 0.234 (c) 234 (d) 2.34
26. 26.7.4 × 29 — where does the decimal point go? (a) 2146 (b) 2.146 (c) 214.6 (d) 21.46
27. 27.9.8 × 6 — where does the decimal point go? (a) 5.88 (b) 588 (c) 0.588 (d) 58.8
28. 28.0.12 × 48 — where does the decimal point go? (a) 0.576 (b) 57.6 (c) 5.76 (d) 0.0576
29. 29.0.13 × 8 — where does the decimal point go? (a) 10.4 (b) 1.04 (c) 0.0104 (d) 0.104
30. 30.6.5 × 1.7 — where does the decimal point go? (a) 110.5 (b) 1.105 (c) 11.05 (d) 0.1105
31. 31.0.15 × 37 — where does the decimal point go? (a) 5.55 (b) 0.0555 (c) 0.555 (d) 55.5
32. 32.4.6 × 21 — where does the decimal point go? (a) 9.66 (b) 0.966 (c) 96.6 (d) 966
33. 33.1.4 × 2 — where does the decimal point go? (a) 28 (b) 2.8 (c) 0.28 (d) 0.028
34. 34.0.52 × 7 — where does the decimal point go? (a) 0.364 (b) 36.4 (c) 0.0364 (d) 3.64
35. 35.0.29 × 16 — where does the decimal point go? (a) 4.64 (b) 0.0464 (c) 0.464 (d) 46.4
36. 36.2.3 × 0.3 — where does the decimal point go? (a) 0.0069 (b) 6.9 (c) 0.69 (d) 0.069
37. 37.3.2 × 3.6 — where does the decimal point go? (a) 0.1152 (b) 11.52 (c) 1.152 (d) 115.2
38. 38.0.21 × 6 — where does the decimal point go? (a) 1.26 (b) 0.126 (c) 12.6 (d) 0.0126
39. 39.0.75 × 49 — where does the decimal point go? (a) 367.5 (b) 36.75 (c) 3.675 (d) 0.3675
40. 40.4.6 × 0.9 — where does the decimal point go? (a) 0.0414 (b) 0.414 (c) 41.4 (d) 4.14

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