Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 15 · 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. 1.0.37 × 2.1 — where does the decimal point go? (a) 0.0777 (b) 7.77 (c) 0.00777 (d) 0.777
2. 2.7.8 × 32 — where does the decimal point go? (a) 249.6 (b) 2.496 (c) 2496 (d) 24.96
3. 3.2.9 × 9 — where does the decimal point go? (a) 0.261 (b) 2.61 (c) 261 (d) 26.1
4. 4.0.38 × 1.1 — where does the decimal point go? (a) 4.18 (b) 0.0418 (c) 0.418 (d) 0.00418
5. 5.4.3 × 1.9 — where does the decimal point go? (a) 8.17 (b) 0.817 (c) 0.0817 (d) 81.7
6. 6.1.5 × 43 — where does the decimal point go? (a) 6.45 (b) 0.645 (c) 64.5 (d) 645
7. 7.3.4 × 2.6 — where does the decimal point go? (a) 0.884 (b) 0.0884 (c) 88.4 (d) 8.84
8. 8.4.7 × 17 — where does the decimal point go? (a) 0.799 (b) 799 (c) 7.99 (d) 79.9
9. 9.7.1 × 2 — where does the decimal point go? (a) 142 (b) 0.142 (c) 14.2 (d) 1.42
10. 10.5.9 × 4.8 — where does the decimal point go? (a) 283.2 (b) 0.2832 (c) 2.832 (d) 28.32
11. 11.0.63 × 28 — where does the decimal point go? (a) 1.764 (b) 17.64 (c) 0.1764 (d) 176.4
12. 12.1.7 × 3.2 — where does the decimal point go? (a) 5.44 (b) 0.544 (c) 54.4 (d) 0.0544
13. 13.8.5 × 7 — where does the decimal point go? (a) 59.5 (b) 5.95 (c) 0.595 (d) 595
14. 14.0.45 × 17 — where does the decimal point go? (a) 0.765 (b) 7.65 (c) 0.0765 (d) 76.5
15. 15.3.2 × 1.6 — where does the decimal point go? (a) 5.12 (b) 0.0512 (c) 0.512 (d) 51.2
16. 16.0.86 × 4.3 — where does the decimal point go? (a) 3.698 (b) 0.03698 (c) 0.3698 (d) 36.98
17. 17.0.41 × 1.3 — where does the decimal point go? (a) 0.0533 (b) 0.533 (c) 0.00533 (d) 5.33
18. 18.0.46 × 0.2 — where does the decimal point go? (a) 0.92 (b) 0.092 (c) 0.00092 (d) 0.0092
19. 19.9.1 × 4 — where does the decimal point go? (a) 3.64 (b) 36.4 (c) 364 (d) 0.364
20. 20.2.5 × 0.9 — where does the decimal point go? (a) 0.225 (b) 22.5 (c) 2.25 (d) 0.0225
21. 21.6.7 × 7 — where does the decimal point go? (a) 4.69 (b) 46.9 (c) 0.469 (d) 469
22. 22.0.61 × 32 — where does the decimal point go? (a) 195.2 (b) 19.52 (c) 1.952 (d) 0.1952
23. 23.1.3 × 27 — where does the decimal point go? (a) 351 (b) 0.351 (c) 3.51 (d) 35.1
24. 24.5.8 × 18 — where does the decimal point go? (a) 1.044 (b) 1044 (c) 10.44 (d) 104.4
25. 25.0.23 × 7 — where does the decimal point go? (a) 0.0161 (b) 1.61 (c) 16.1 (d) 0.161
26. 26.0.55 × 4.7 — where does the decimal point go? (a) 2.585 (b) 25.85 (c) 0.2585 (d) 0.02585
27. 27.0.13 × 9 — where does the decimal point go? (a) 0.117 (b) 0.0117 (c) 11.7 (d) 1.17
28. 28.5.9 × 16 — where does the decimal point go? (a) 94.4 (b) 944 (c) 0.944 (d) 9.44
29. 29.0.82 × 3.3 — where does the decimal point go? (a) 27.06 (b) 2.706 (c) 0.02706 (d) 0.2706
30. 30.9.5 × 3 — where does the decimal point go? (a) 2.85 (b) 285 (c) 0.285 (d) 28.5
31. 31.0.42 × 3.6 — where does the decimal point go? (a) 0.1512 (b) 15.12 (c) 1.512 (d) 0.01512
32. 32.4.6 × 3.2 — where does the decimal point go? (a) 0.1472 (b) 147.2 (c) 1.472 (d) 14.72
33. 33.3.1 × 4 — where does the decimal point go? (a) 12.4 (b) 1.24 (c) 0.124 (d) 124
34. 34.0.44 × 1.9 — where does the decimal point go? (a) 0.836 (b) 0.00836 (c) 0.0836 (d) 8.36
35. 35.0.23 × 19 — where does the decimal point go? (a) 43.7 (b) 0.0437 (c) 4.37 (d) 0.437
36. 36.4.6 × 22 — where does the decimal point go? (a) 1.012 (b) 101.2 (c) 1012 (d) 10.12
37. 37.4.7 × 1.4 — where does the decimal point go? (a) 0.0658 (b) 6.58 (c) 0.658 (d) 65.8
38. 38.0.33 × 4.3 — where does the decimal point go? (a) 1.419 (b) 14.19 (c) 0.01419 (d) 0.1419
39. 39.0.91 × 47 — where does the decimal point go? (a) 0.4277 (b) 42.77 (c) 4.277 (d) 427.7
40. 40.8.3 × 0.7 — where does the decimal point go? (a) 0.581 (b) 5.81 (c) 58.1 (d) 0.0581

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