Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 862 · 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. 1.9.6 × 19 — where does the decimal point go? (a) 1.824 (b) 182.4 (c) 1824 (d) 18.24
2. 2.0.19 × 3 — where does the decimal point go? (a) 0.057 (b) 0.57 (c) 5.7 (d) 0.0057
3. 3.1.3 × 48 — where does the decimal point go? (a) 0.624 (b) 62.4 (c) 624 (d) 6.24
4. 4.1.8 × 17 — where does the decimal point go? (a) 30.6 (b) 3.06 (c) 306 (d) 0.306
5. 5.0.45 × 9 — where does the decimal point go? (a) 0.405 (b) 0.0405 (c) 4.05 (d) 40.5
6. 6.2.8 × 0.7 — where does the decimal point go? (a) 1.96 (b) 0.196 (c) 19.6 (d) 0.0196
7. 7.8.1 × 2.2 — where does the decimal point go? (a) 17.82 (b) 178.2 (c) 0.1782 (d) 1.782
8. 8.0.92 × 12 — where does the decimal point go? (a) 110.4 (b) 11.04 (c) 1.104 (d) 0.1104
9. 9.2.1 × 0.5 — where does the decimal point go? (a) 0.105 (b) 0.0105 (c) 1.05 (d) 10.5
10. 10.2.2 × 46 — where does the decimal point go? (a) 10.12 (b) 101.2 (c) 1.012 (d) 1012
11. 11.2.8 × 7 — where does the decimal point go? (a) 1.96 (b) 19.6 (c) 0.196 (d) 196
12. 12.0.74 × 3.9 — where does the decimal point go? (a) 2.886 (b) 0.02886 (c) 0.2886 (d) 28.86
13. 13.0.49 × 45 — where does the decimal point go? (a) 2.205 (b) 220.5 (c) 22.05 (d) 0.2205
14. 14.0.23 × 2.6 — where does the decimal point go? (a) 0.598 (b) 0.00598 (c) 0.0598 (d) 5.98
15. 15.0.69 × 8 — where does the decimal point go? (a) 55.2 (b) 0.0552 (c) 0.552 (d) 5.52
16. 16.2.1 × 0.6 — where does the decimal point go? (a) 1.26 (b) 0.0126 (c) 12.6 (d) 0.126
17. 17.7.4 × 4.7 — where does the decimal point go? (a) 34.78 (b) 3.478 (c) 0.3478 (d) 347.8
18. 18.2.7 × 3.8 — where does the decimal point go? (a) 0.1026 (b) 1.026 (c) 10.26 (d) 102.6
19. 19.3.4 × 3.3 — where does the decimal point go? (a) 11.22 (b) 0.1122 (c) 1.122 (d) 112.2
20. 20.0.13 × 6 — where does the decimal point go? (a) 0.078 (b) 7.8 (c) 0.78 (d) 0.0078
21. 21.0.33 × 41 — where does the decimal point go? (a) 0.1353 (b) 1.353 (c) 13.53 (d) 135.3
22. 22.0.65 × 9 — where does the decimal point go? (a) 0.0585 (b) 58.5 (c) 0.585 (d) 5.85
23. 23.3.2 × 6 — where does the decimal point go? (a) 192 (b) 19.2 (c) 0.192 (d) 1.92
24. 24.6.7 × 26 — where does the decimal point go? (a) 1.742 (b) 1742 (c) 17.42 (d) 174.2
25. 25.1.5 × 7 — where does the decimal point go? (a) 1.05 (b) 10.5 (c) 105 (d) 0.105
26. 26.0.91 × 0.6 — where does the decimal point go? (a) 0.0546 (b) 5.46 (c) 0.546 (d) 0.00546
27. 27.4.9 × 0.6 — where does the decimal point go? (a) 29.4 (b) 0.0294 (c) 0.294 (d) 2.94
28. 28.0.25 × 39 — where does the decimal point go? (a) 0.975 (b) 97.5 (c) 9.75 (d) 0.0975
29. 29.0.82 × 2.7 — where does the decimal point go? (a) 0.2214 (b) 2.214 (c) 0.02214 (d) 22.14
30. 30.0.48 × 2.2 — where does the decimal point go? (a) 0.1056 (b) 10.56 (c) 0.01056 (d) 1.056
31. 31.0.36 × 3 — where does the decimal point go? (a) 1.08 (b) 0.0108 (c) 10.8 (d) 0.108
32. 32.0.37 × 6 — where does the decimal point go? (a) 0.222 (b) 22.2 (c) 2.22 (d) 0.0222
33. 33.0.48 × 0.3 — where does the decimal point go? (a) 0.144 (b) 0.0144 (c) 1.44 (d) 0.00144
34. 34.3.3 × 0.3 — where does the decimal point go? (a) 0.99 (b) 9.9 (c) 0.0099 (d) 0.099
35. 35.5.8 × 7 — where does the decimal point go? (a) 4.06 (b) 0.406 (c) 406 (d) 40.6
36. 36.0.42 × 3.7 — where does the decimal point go? (a) 0.01554 (b) 0.1554 (c) 1.554 (d) 15.54
37. 37.1.6 × 47 — where does the decimal point go? (a) 7.52 (b) 75.2 (c) 752 (d) 0.752
38. 38.1.9 × 0.9 — where does the decimal point go? (a) 0.171 (b) 1.71 (c) 17.1 (d) 0.0171
39. 39.0.46 × 3.2 — where does the decimal point go? (a) 1.472 (b) 0.01472 (c) 14.72 (d) 0.1472
40. 40.0.44 × 28 — where does the decimal point go? (a) 12.32 (b) 0.1232 (c) 123.2 (d) 1.232

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