Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 2 · 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. 1.0.58 × 8 — where does the decimal point go? (a) 0.464 (b) 46.4 (c) 0.0464 (d) 4.64
2. 2.0.69 × 2.9 — where does the decimal point go? (a) 2.001 (b) 0.2001 (c) 0.02001 (d) 20.01
3. 3.0.93 × 0.9 — where does the decimal point go? (a) 0.00837 (b) 8.37 (c) 0.837 (d) 0.0837
4. 4.8.9 × 12 — where does the decimal point go? (a) 1.068 (b) 106.8 (c) 1068 (d) 10.68
5. 5.8.3 × 12 — where does the decimal point go? (a) 9.96 (b) 996 (c) 0.996 (d) 99.6
6. 6.5.4 × 3.6 — where does the decimal point go? (a) 0.1944 (b) 1.944 (c) 194.4 (d) 19.44
7. 7.8.9 × 38 — where does the decimal point go? (a) 3382 (b) 3.382 (c) 33.82 (d) 338.2
8. 8.2.7 × 0.8 — where does the decimal point go? (a) 2.16 (b) 21.6 (c) 0.216 (d) 0.0216
9. 9.3.2 × 4.9 — where does the decimal point go? (a) 156.8 (b) 1.568 (c) 0.1568 (d) 15.68
10. 10.0.63 × 28 — where does the decimal point go? (a) 176.4 (b) 17.64 (c) 1.764 (d) 0.1764
11. 11.6.6 × 32 — where does the decimal point go? (a) 2.112 (b) 21.12 (c) 2112 (d) 211.2
12. 12.7.3 × 2.5 — where does the decimal point go? (a) 18.25 (b) 0.1825 (c) 1.825 (d) 182.5
13. 13.0.99 × 0.7 — where does the decimal point go? (a) 0.693 (b) 6.93 (c) 0.0693 (d) 0.00693
14. 14.0.36 × 1.4 — where does the decimal point go? (a) 0.0504 (b) 0.00504 (c) 5.04 (d) 0.504
15. 15.7.5 × 47 — where does the decimal point go? (a) 3525 (b) 35.25 (c) 3.525 (d) 352.5
16. 16.0.73 × 4.7 — where does the decimal point go? (a) 0.3431 (b) 0.03431 (c) 34.31 (d) 3.431
17. 17.0.56 × 4.9 — where does the decimal point go? (a) 27.44 (b) 0.02744 (c) 2.744 (d) 0.2744
18. 18.8.3 × 0.8 — where does the decimal point go? (a) 66.4 (b) 0.664 (c) 0.0664 (d) 6.64
19. 19.5.3 × 0.3 — where does the decimal point go? (a) 15.9 (b) 0.0159 (c) 0.159 (d) 1.59
20. 20.9.9 × 49 — where does the decimal point go? (a) 485.1 (b) 4851 (c) 48.51 (d) 4.851
21. 21.3.6 × 8 — where does the decimal point go? (a) 288 (b) 2.88 (c) 28.8 (d) 0.288
22. 22.7.4 × 0.3 — where does the decimal point go? (a) 0.222 (b) 22.2 (c) 2.22 (d) 0.0222
23. 23.0.58 × 2.4 — where does the decimal point go? (a) 0.1392 (b) 1.392 (c) 0.01392 (d) 13.92
24. 24.0.75 × 5 — where does the decimal point go? (a) 0.375 (b) 37.5 (c) 3.75 (d) 0.0375
25. 25.5.6 × 0.9 — where does the decimal point go? (a) 0.0504 (b) 5.04 (c) 50.4 (d) 0.504
26. 26.0.49 × 0.2 — where does the decimal point go? (a) 0.0098 (b) 0.098 (c) 0.98 (d) 0.00098
27. 27.6.2 × 6 — where does the decimal point go? (a) 3.72 (b) 0.372 (c) 37.2 (d) 372
28. 28.0.91 × 3.6 — where does the decimal point go? (a) 0.03276 (b) 3.276 (c) 32.76 (d) 0.3276
29. 29.9.8 × 0.2 — where does the decimal point go? (a) 0.0196 (b) 1.96 (c) 0.196 (d) 19.6
30. 30.0.15 × 1.7 — where does the decimal point go? (a) 2.55 (b) 0.00255 (c) 0.255 (d) 0.0255
31. 31.0.12 × 4.3 — where does the decimal point go? (a) 0.0516 (b) 0.00516 (c) 5.16 (d) 0.516
32. 32.0.34 × 4.3 — where does the decimal point go? (a) 0.1462 (b) 0.01462 (c) 1.462 (d) 14.62
33. 33.4.2 × 1.2 — where does the decimal point go? (a) 5.04 (b) 50.4 (c) 0.504 (d) 0.0504
34. 34.0.43 × 9 — where does the decimal point go? (a) 0.387 (b) 38.7 (c) 0.0387 (d) 3.87
35. 35.4.4 × 47 — where does the decimal point go? (a) 20.68 (b) 2.068 (c) 2068 (d) 206.8
36. 36.6.7 × 25 — where does the decimal point go? (a) 16.75 (b) 1.675 (c) 1675 (d) 167.5
37. 37.8.2 × 42 — where does the decimal point go? (a) 3.444 (b) 344.4 (c) 3444 (d) 34.44
38. 38.5.9 × 8 — where does the decimal point go? (a) 472 (b) 0.472 (c) 47.2 (d) 4.72
39. 39.0.17 × 0.7 — where does the decimal point go? (a) 0.119 (b) 0.00119 (c) 0.0119 (d) 1.19
40. 40.2.6 × 4.1 — where does the decimal point go? (a) 10.66 (b) 0.1066 (c) 1.066 (d) 106.6

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