Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 855 · 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. 1.0.74 × 0.2 — where does the decimal point go? (a) 0.0148 (b) 1.48 (c) 0.00148 (d) 0.148
2. 2.3.9 × 4 — where does the decimal point go? (a) 156 (b) 0.156 (c) 1.56 (d) 15.6
3. 3.3.1 × 9 — where does the decimal point go? (a) 2.79 (b) 27.9 (c) 279 (d) 0.279
4. 4.0.17 × 0.3 — where does the decimal point go? (a) 0.00051 (b) 0.51 (c) 0.0051 (d) 0.051
5. 5.8.2 × 1.6 — where does the decimal point go? (a) 131.2 (b) 0.1312 (c) 1.312 (d) 13.12
6. 6.0.91 × 6 — where does the decimal point go? (a) 54.6 (b) 0.0546 (c) 5.46 (d) 0.546
7. 7.0.82 × 0.4 — where does the decimal point go? (a) 0.328 (b) 0.00328 (c) 3.28 (d) 0.0328
8. 8.3.2 × 2.4 — where does the decimal point go? (a) 0.0768 (b) 0.768 (c) 7.68 (d) 76.8
9. 9.4.2 × 0.7 — where does the decimal point go? (a) 2.94 (b) 0.294 (c) 29.4 (d) 0.0294
10. 10.0.23 × 8 — where does the decimal point go? (a) 0.184 (b) 0.0184 (c) 1.84 (d) 18.4
11. 11.0.98 × 2 — where does the decimal point go? (a) 1.96 (b) 0.196 (c) 0.0196 (d) 19.6
12. 12.9.2 × 9 — where does the decimal point go? (a) 828 (b) 8.28 (c) 82.8 (d) 0.828
13. 13.0.88 × 0.9 — where does the decimal point go? (a) 0.792 (b) 7.92 (c) 0.0792 (d) 0.00792
14. 14.7.2 × 16 — where does the decimal point go? (a) 115.2 (b) 11.52 (c) 1.152 (d) 1152
15. 15.1.3 × 0.2 — where does the decimal point go? (a) 0.0026 (b) 0.26 (c) 0.026 (d) 2.6
16. 16.1.8 × 28 — where does the decimal point go? (a) 50.4 (b) 5.04 (c) 504 (d) 0.504
17. 17.0.52 × 7 — where does the decimal point go? (a) 36.4 (b) 0.364 (c) 3.64 (d) 0.0364
18. 18.1.8 × 42 — where does the decimal point go? (a) 756 (b) 75.6 (c) 7.56 (d) 0.756
19. 19.7.7 × 8 — where does the decimal point go? (a) 616 (b) 0.616 (c) 6.16 (d) 61.6
20. 20.0.49 × 0.2 — where does the decimal point go? (a) 0.098 (b) 0.0098 (c) 0.98 (d) 0.00098
21. 21.3.3 × 4.2 — where does the decimal point go? (a) 138.6 (b) 0.1386 (c) 13.86 (d) 1.386
22. 22.7.3 × 0.4 — where does the decimal point go? (a) 0.0292 (b) 2.92 (c) 0.292 (d) 29.2
23. 23.2.4 × 39 — where does the decimal point go? (a) 93.6 (b) 936 (c) 9.36 (d) 0.936
24. 24.0.73 × 5 — where does the decimal point go? (a) 36.5 (b) 0.0365 (c) 0.365 (d) 3.65
25. 25.8.9 × 4.3 — where does the decimal point go? (a) 3.827 (b) 0.3827 (c) 38.27 (d) 382.7
26. 26.4.2 × 0.9 — where does the decimal point go? (a) 37.8 (b) 0.378 (c) 0.0378 (d) 3.78
27. 27.7.3 × 22 — where does the decimal point go? (a) 16.06 (b) 160.6 (c) 1.606 (d) 1606
28. 28.0.62 × 3 — where does the decimal point go? (a) 0.0186 (b) 1.86 (c) 18.6 (d) 0.186
29. 29.0.63 × 0.9 — where does the decimal point go? (a) 0.567 (b) 0.00567 (c) 5.67 (d) 0.0567
30. 30.0.17 × 47 — where does the decimal point go? (a) 0.0799 (b) 0.799 (c) 7.99 (d) 79.9
31. 31.0.56 × 0.7 — where does the decimal point go? (a) 0.392 (b) 0.00392 (c) 0.0392 (d) 3.92
32. 32.2.3 × 2.7 — where does the decimal point go? (a) 62.1 (b) 0.621 (c) 0.0621 (d) 6.21
33. 33.0.54 × 4 — where does the decimal point go? (a) 0.0216 (b) 2.16 (c) 21.6 (d) 0.216
34. 34.0.92 × 1.9 — where does the decimal point go? (a) 0.1748 (b) 17.48 (c) 0.01748 (d) 1.748
35. 35.0.54 × 0.8 — where does the decimal point go? (a) 0.00432 (b) 4.32 (c) 0.0432 (d) 0.432
36. 36.3.7 × 0.4 — where does the decimal point go? (a) 0.0148 (b) 14.8 (c) 1.48 (d) 0.148
37. 37.9.4 × 4 — where does the decimal point go? (a) 0.376 (b) 376 (c) 3.76 (d) 37.6
38. 38.0.47 × 0.5 — where does the decimal point go? (a) 0.0235 (b) 0.00235 (c) 0.235 (d) 2.35
39. 39.4.9 × 48 — where does the decimal point go? (a) 2352 (b) 2.352 (c) 235.2 (d) 23.52
40. 40.4.6 × 42 — where does the decimal point go? (a) 1932 (b) 193.2 (c) 1.932 (d) 19.32

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