Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 532 · 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. 1.9.5 × 2.7 — where does the decimal point go? (a) 25.65 (b) 0.2565 (c) 2.565 (d) 256.5
2. 2.1.9 × 2 — where does the decimal point go? (a) 3.8 (b) 38 (c) 0.038 (d) 0.38
3. 3.0.88 × 0.4 — where does the decimal point go? (a) 0.00352 (b) 0.0352 (c) 0.352 (d) 3.52
4. 4.7.9 × 3 — where does the decimal point go? (a) 237 (b) 2.37 (c) 23.7 (d) 0.237
5. 5.0.82 × 1.6 — where does the decimal point go? (a) 1.312 (b) 0.01312 (c) 0.1312 (d) 13.12
6. 6.0.15 × 2.3 — where does the decimal point go? (a) 0.00345 (b) 0.0345 (c) 3.45 (d) 0.345
7. 7.6.2 × 24 — where does the decimal point go? (a) 1488 (b) 14.88 (c) 148.8 (d) 1.488
8. 8.0.65 × 4.3 — where does the decimal point go? (a) 0.2795 (b) 0.02795 (c) 27.95 (d) 2.795
9. 9.3.3 × 1.9 — where does the decimal point go? (a) 0.0627 (b) 0.627 (c) 6.27 (d) 62.7
10. 10.0.91 × 3.8 — where does the decimal point go? (a) 3.458 (b) 0.3458 (c) 34.58 (d) 0.03458
11. 11.0.59 × 6 — where does the decimal point go? (a) 3.54 (b) 35.4 (c) 0.0354 (d) 0.354
12. 12.8.7 × 2.7 — where does the decimal point go? (a) 234.9 (b) 23.49 (c) 0.2349 (d) 2.349
13. 13.0.72 × 0.6 — where does the decimal point go? (a) 4.32 (b) 0.00432 (c) 0.0432 (d) 0.432
14. 14.0.51 × 2 — where does the decimal point go? (a) 0.0102 (b) 0.102 (c) 10.2 (d) 1.02
15. 15.2.4 × 0.4 — where does the decimal point go? (a) 0.096 (b) 0.0096 (c) 0.96 (d) 9.6
16. 16.8.1 × 0.2 — where does the decimal point go? (a) 0.0162 (b) 1.62 (c) 16.2 (d) 0.162
17. 17.0.99 × 8 — where does the decimal point go? (a) 0.792 (b) 0.0792 (c) 7.92 (d) 79.2
18. 18.0.49 × 0.9 — where does the decimal point go? (a) 4.41 (b) 0.00441 (c) 0.0441 (d) 0.441
19. 19.0.95 × 7 — where does the decimal point go? (a) 0.0665 (b) 66.5 (c) 0.665 (d) 6.65
20. 20.8.7 × 41 — where does the decimal point go? (a) 3.567 (b) 35.67 (c) 356.7 (d) 3567
21. 21.9.7 × 0.4 — where does the decimal point go? (a) 0.0388 (b) 0.388 (c) 38.8 (d) 3.88
22. 22.3.1 × 0.4 — where does the decimal point go? (a) 1.24 (b) 0.0124 (c) 12.4 (d) 0.124
23. 23.0.14 × 0.2 — where does the decimal point go? (a) 0.028 (b) 0.0028 (c) 0.00028 (d) 0.28
24. 24.5.8 × 0.2 — where does the decimal point go? (a) 0.116 (b) 1.16 (c) 11.6 (d) 0.0116
25. 25.9.5 × 3.7 — where does the decimal point go? (a) 0.3515 (b) 35.15 (c) 3.515 (d) 351.5
26. 26.3.4 × 8 — where does the decimal point go? (a) 2.72 (b) 0.272 (c) 272 (d) 27.2
27. 27.9.5 × 9 — where does the decimal point go? (a) 0.855 (b) 8.55 (c) 85.5 (d) 855
28. 28.0.48 × 0.2 — where does the decimal point go? (a) 0.00096 (b) 0.96 (c) 0.096 (d) 0.0096
29. 29.3.7 × 8 — where does the decimal point go? (a) 29.6 (b) 0.296 (c) 296 (d) 2.96
30. 30.5.7 × 47 — where does the decimal point go? (a) 2679 (b) 26.79 (c) 267.9 (d) 2.679
31. 31.0.32 × 3.9 — where does the decimal point go? (a) 0.01248 (b) 0.1248 (c) 1.248 (d) 12.48
32. 32.0.27 × 0.7 — where does the decimal point go? (a) 0.189 (b) 0.0189 (c) 0.00189 (d) 1.89
33. 33.7.9 × 2.8 — where does the decimal point go? (a) 0.2212 (b) 2.212 (c) 22.12 (d) 221.2
34. 34.9.4 × 1.7 — where does the decimal point go? (a) 159.8 (b) 0.1598 (c) 15.98 (d) 1.598
35. 35.4.7 × 6 — where does the decimal point go? (a) 282 (b) 2.82 (c) 0.282 (d) 28.2
36. 36.6.9 × 9 — where does the decimal point go? (a) 0.621 (b) 6.21 (c) 62.1 (d) 621
37. 37.4.3 × 2.4 — where does the decimal point go? (a) 0.1032 (b) 1.032 (c) 103.2 (d) 10.32
38. 38.3.9 × 0.3 — where does the decimal point go? (a) 0.0117 (b) 11.7 (c) 0.117 (d) 1.17
39. 39.0.14 × 1.9 — where does the decimal point go? (a) 2.66 (b) 0.00266 (c) 0.266 (d) 0.0266
40. 40.9.7 × 36 — where does the decimal point go? (a) 349.2 (b) 3.492 (c) 3492 (d) 34.92

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