Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 419 · 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. 1.1.3 × 25 — where does the decimal point go? (a) 0.325 (b) 3.25 (c) 325 (d) 32.5
2. 2.0.42 × 0.7 — where does the decimal point go? (a) 0.0294 (b) 0.294 (c) 0.00294 (d) 2.94
3. 3.2.7 × 3.7 — where does the decimal point go? (a) 0.0999 (b) 0.999 (c) 9.99 (d) 99.9
4. 4.0.12 × 2 — where does the decimal point go? (a) 0.0024 (b) 0.024 (c) 2.4 (d) 0.24
5. 5.6.6 × 2.2 — where does the decimal point go? (a) 14.52 (b) 0.1452 (c) 1.452 (d) 145.2
6. 6.7.2 × 0.2 — where does the decimal point go? (a) 0.144 (b) 0.0144 (c) 1.44 (d) 14.4
7. 7.0.89 × 0.7 — where does the decimal point go? (a) 6.23 (b) 0.0623 (c) 0.623 (d) 0.00623
8. 8.0.38 × 38 — where does the decimal point go? (a) 0.1444 (b) 144.4 (c) 1.444 (d) 14.44
9. 9.6.4 × 8 — where does the decimal point go? (a) 5.12 (b) 0.512 (c) 512 (d) 51.2
10. 10.0.64 × 4.6 — where does the decimal point go? (a) 0.02944 (b) 0.2944 (c) 2.944 (d) 29.44
11. 11.3.7 × 28 — where does the decimal point go? (a) 10.36 (b) 1036 (c) 1.036 (d) 103.6
12. 12.0.36 × 0.4 — where does the decimal point go? (a) 0.144 (b) 0.0144 (c) 0.00144 (d) 1.44
13. 13.0.23 × 24 — where does the decimal point go? (a) 5.52 (b) 0.552 (c) 0.0552 (d) 55.2
14. 14.7.7 × 2 — where does the decimal point go? (a) 1.54 (b) 154 (c) 0.154 (d) 15.4
15. 15.4.4 × 24 — where does the decimal point go? (a) 1056 (b) 105.6 (c) 1.056 (d) 10.56
16. 16.0.24 × 0.9 — where does the decimal point go? (a) 2.16 (b) 0.0216 (c) 0.00216 (d) 0.216
17. 17.7.7 × 33 — where does the decimal point go? (a) 2.541 (b) 254.1 (c) 2541 (d) 25.41
18. 18.7.4 × 11 — where does the decimal point go? (a) 814 (b) 81.4 (c) 8.14 (d) 0.814
19. 19.0.25 × 0.5 — where does the decimal point go? (a) 0.0125 (b) 0.00125 (c) 1.25 (d) 0.125
20. 20.3.9 × 3.4 — where does the decimal point go? (a) 13.26 (b) 132.6 (c) 0.1326 (d) 1.326
21. 21.3.8 × 14 — where does the decimal point go? (a) 532 (b) 53.2 (c) 0.532 (d) 5.32
22. 22.0.34 × 4.7 — where does the decimal point go? (a) 1.598 (b) 0.1598 (c) 15.98 (d) 0.01598
23. 23.0.89 × 46 — where does the decimal point go? (a) 0.4094 (b) 4.094 (c) 40.94 (d) 409.4
24. 24.0.31 × 2 — where does the decimal point go? (a) 6.2 (b) 0.062 (c) 0.0062 (d) 0.62
25. 25.1.7 × 3.7 — where does the decimal point go? (a) 0.629 (b) 62.9 (c) 6.29 (d) 0.0629
26. 26.0.43 × 0.9 — where does the decimal point go? (a) 0.00387 (b) 0.387 (c) 3.87 (d) 0.0387
27. 27.6.9 × 4 — where does the decimal point go? (a) 0.276 (b) 2.76 (c) 27.6 (d) 276
28. 28.0.91 × 4.5 — where does the decimal point go? (a) 0.04095 (b) 0.4095 (c) 40.95 (d) 4.095
29. 29.6.1 × 9 — where does the decimal point go? (a) 549 (b) 0.549 (c) 5.49 (d) 54.9
30. 30.6.1 × 24 — where does the decimal point go? (a) 14.64 (b) 1.464 (c) 146.4 (d) 1464
31. 31.5.9 × 23 — where does the decimal point go? (a) 135.7 (b) 13.57 (c) 1357 (d) 1.357
32. 32.0.33 × 17 — where does the decimal point go? (a) 56.1 (b) 0.0561 (c) 0.561 (d) 5.61
33. 33.8.2 × 0.8 — where does the decimal point go? (a) 0.0656 (b) 0.656 (c) 65.6 (d) 6.56
34. 34.0.86 × 0.6 — where does the decimal point go? (a) 0.0516 (b) 0.00516 (c) 0.516 (d) 5.16
35. 35.1.8 × 0.2 — where does the decimal point go? (a) 0.0036 (b) 0.036 (c) 3.6 (d) 0.36
36. 36.0.73 × 4 — where does the decimal point go? (a) 2.92 (b) 29.2 (c) 0.0292 (d) 0.292
37. 37.0.48 × 2 — where does the decimal point go? (a) 0.96 (b) 0.096 (c) 0.0096 (d) 9.6
38. 38.1.8 × 28 — where does the decimal point go? (a) 50.4 (b) 504 (c) 5.04 (d) 0.504
39. 39.0.33 × 0.8 — where does the decimal point go? (a) 0.0264 (b) 0.264 (c) 0.00264 (d) 2.64
40. 40.0.21 × 4.8 — where does the decimal point go? (a) 10.08 (b) 1.008 (c) 0.1008 (d) 0.01008

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