Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 583 · 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 × 1.4 — where does the decimal point go? (a) 0.812 (b) 0.0812 (c) 0.00812 (d) 8.12
2. 2.0.53 × 1.2 — where does the decimal point go? (a) 0.0636 (b) 6.36 (c) 0.636 (d) 0.00636
3. 3.6.6 × 39 — where does the decimal point go? (a) 25.74 (b) 2.574 (c) 257.4 (d) 2574
4. 4.0.82 × 0.8 — where does the decimal point go? (a) 0.00656 (b) 6.56 (c) 0.0656 (d) 0.656
5. 5.0.89 × 9 — where does the decimal point go? (a) 8.01 (b) 0.0801 (c) 80.1 (d) 0.801
6. 6.0.82 × 1.2 — where does the decimal point go? (a) 9.84 (b) 0.00984 (c) 0.984 (d) 0.0984
7. 7.9.8 × 4 — where does the decimal point go? (a) 39.2 (b) 3.92 (c) 392 (d) 0.392
8. 8.3.9 × 7 — where does the decimal point go? (a) 2.73 (b) 27.3 (c) 0.273 (d) 273
9. 9.0.98 × 8 — where does the decimal point go? (a) 7.84 (b) 78.4 (c) 0.0784 (d) 0.784
10. 10.7.2 × 3.1 — where does the decimal point go? (a) 0.2232 (b) 22.32 (c) 2.232 (d) 223.2
11. 11.9.8 × 0.2 — where does the decimal point go? (a) 19.6 (b) 0.0196 (c) 1.96 (d) 0.196
12. 12.0.83 × 2.2 — where does the decimal point go? (a) 1.826 (b) 0.01826 (c) 0.1826 (d) 18.26
13. 13.9.2 × 0.9 — where does the decimal point go? (a) 8.28 (b) 0.828 (c) 0.0828 (d) 82.8
14. 14.5.3 × 29 — where does the decimal point go? (a) 15.37 (b) 1.537 (c) 1537 (d) 153.7
15. 15.0.52 × 32 — where does the decimal point go? (a) 166.4 (b) 0.1664 (c) 16.64 (d) 1.664
16. 16.1.2 × 8 — where does the decimal point go? (a) 9.6 (b) 0.096 (c) 0.96 (d) 96
17. 17.0.84 × 18 — where does the decimal point go? (a) 15.12 (b) 151.2 (c) 1.512 (d) 0.1512
18. 18.3.7 × 3.8 — where does the decimal point go? (a) 0.1406 (b) 14.06 (c) 1.406 (d) 140.6
19. 19.1.7 × 4.3 — where does the decimal point go? (a) 0.731 (b) 73.1 (c) 0.0731 (d) 7.31
20. 20.6.8 × 34 — where does the decimal point go? (a) 23.12 (b) 2312 (c) 231.2 (d) 2.312
21. 21.0.22 × 2.7 — where does the decimal point go? (a) 5.94 (b) 0.594 (c) 0.00594 (d) 0.0594
22. 22.3.2 × 4.1 — where does the decimal point go? (a) 1.312 (b) 131.2 (c) 13.12 (d) 0.1312
23. 23.0.45 × 37 — where does the decimal point go? (a) 0.1665 (b) 166.5 (c) 1.665 (d) 16.65
24. 24.0.41 × 0.9 — where does the decimal point go? (a) 0.00369 (b) 0.0369 (c) 0.369 (d) 3.69
25. 25.0.32 × 23 — where does the decimal point go? (a) 0.0736 (b) 0.736 (c) 73.6 (d) 7.36
26. 26.5.3 × 18 — where does the decimal point go? (a) 0.954 (b) 954 (c) 9.54 (d) 95.4
27. 27.7.2 × 7 — where does the decimal point go? (a) 504 (b) 50.4 (c) 5.04 (d) 0.504
28. 28.4.9 × 41 — where does the decimal point go? (a) 2009 (b) 20.09 (c) 200.9 (d) 2.009
29. 29.0.51 × 4.5 — where does the decimal point go? (a) 2.295 (b) 0.02295 (c) 0.2295 (d) 22.95
30. 30.0.76 × 7 — where does the decimal point go? (a) 0.532 (b) 5.32 (c) 0.0532 (d) 53.2
31. 31.0.73 × 2 — where does the decimal point go? (a) 0.0146 (b) 0.146 (c) 1.46 (d) 14.6
32. 32.0.82 × 9 — where does the decimal point go? (a) 73.8 (b) 7.38 (c) 0.738 (d) 0.0738
33. 33.0.59 × 18 — where does the decimal point go? (a) 10.62 (b) 0.1062 (c) 106.2 (d) 1.062
34. 34.7.2 × 8 — where does the decimal point go? (a) 57.6 (b) 0.576 (c) 576 (d) 5.76
35. 35.0.61 × 1.1 — where does the decimal point go? (a) 0.0671 (b) 0.00671 (c) 6.71 (d) 0.671
36. 36.1.7 × 6 — where does the decimal point go? (a) 1.02 (b) 10.2 (c) 102 (d) 0.102
37. 37.0.74 × 0.8 — where does the decimal point go? (a) 0.00592 (b) 0.592 (c) 0.0592 (d) 5.92
38. 38.4.4 × 23 — where does the decimal point go? (a) 1012 (b) 10.12 (c) 1.012 (d) 101.2
39. 39.0.53 × 9 — where does the decimal point go? (a) 0.0477 (b) 47.7 (c) 4.77 (d) 0.477
40. 40.0.97 × 1.4 — where does the decimal point go? (a) 1.358 (b) 0.01358 (c) 13.58 (d) 0.1358

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