Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 457 · 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. 1.6.8 × 0.8 — where does the decimal point go? (a) 0.544 (b) 5.44 (c) 54.4 (d) 0.0544
2. 2.8.3 × 36 — where does the decimal point go? (a) 29.88 (b) 2988 (c) 2.988 (d) 298.8
3. 3.0.29 × 13 — where does the decimal point go? (a) 3.77 (b) 0.0377 (c) 0.377 (d) 37.7
4. 4.0.83 × 2 — where does the decimal point go? (a) 1.66 (b) 16.6 (c) 0.0166 (d) 0.166
5. 5.3.2 × 1.6 — where does the decimal point go? (a) 5.12 (b) 51.2 (c) 0.512 (d) 0.0512
6. 6.1.9 × 0.7 — where does the decimal point go? (a) 0.133 (b) 13.3 (c) 1.33 (d) 0.0133
7. 7.2.8 × 3 — where does the decimal point go? (a) 0.84 (b) 0.084 (c) 8.4 (d) 84
8. 8.0.58 × 0.8 — where does the decimal point go? (a) 0.0464 (b) 0.464 (c) 4.64 (d) 0.00464
9. 9.0.28 × 9 — where does the decimal point go? (a) 2.52 (b) 0.252 (c) 0.0252 (d) 25.2
10. 10.0.77 × 39 — where does the decimal point go? (a) 30.03 (b) 300.3 (c) 0.3003 (d) 3.003
11. 11.5.9 × 3 — where does the decimal point go? (a) 0.177 (b) 177 (c) 1.77 (d) 17.7
12. 12.7.1 × 0.8 — where does the decimal point go? (a) 0.0568 (b) 5.68 (c) 0.568 (d) 56.8
13. 13.0.19 × 0.8 — where does the decimal point go? (a) 0.152 (b) 0.00152 (c) 1.52 (d) 0.0152
14. 14.0.88 × 38 — where does the decimal point go? (a) 3.344 (b) 0.3344 (c) 334.4 (d) 33.44
15. 15.4.1 × 38 — where does the decimal point go? (a) 1558 (b) 15.58 (c) 1.558 (d) 155.8
16. 16.8.5 × 0.5 — where does the decimal point go? (a) 4.25 (b) 0.0425 (c) 0.425 (d) 42.5
17. 17.6.8 × 1.1 — where does the decimal point go? (a) 7.48 (b) 0.748 (c) 0.0748 (d) 74.8
18. 18.1.7 × 4.9 — where does the decimal point go? (a) 0.833 (b) 0.0833 (c) 83.3 (d) 8.33
19. 19.9.9 × 0.6 — where does the decimal point go? (a) 5.94 (b) 0.594 (c) 0.0594 (d) 59.4
20. 20.0.49 × 2.9 — where does the decimal point go? (a) 1.421 (b) 0.1421 (c) 14.21 (d) 0.01421
21. 21.0.88 × 3 — where does the decimal point go? (a) 0.0264 (b) 2.64 (c) 0.264 (d) 26.4
22. 22.2.6 × 1.9 — where does the decimal point go? (a) 0.0494 (b) 4.94 (c) 49.4 (d) 0.494
23. 23.4.4 × 4.7 — where does the decimal point go? (a) 20.68 (b) 2.068 (c) 0.2068 (d) 206.8
24. 24.0.28 × 0.2 — where does the decimal point go? (a) 0.0056 (b) 0.056 (c) 0.00056 (d) 0.56
25. 25.0.23 × 0.5 — where does the decimal point go? (a) 0.0115 (b) 0.115 (c) 0.00115 (d) 1.15
26. 26.0.64 × 3 — where does the decimal point go? (a) 0.192 (b) 19.2 (c) 0.0192 (d) 1.92
27. 27.0.48 × 0.4 — where does the decimal point go? (a) 0.00192 (b) 1.92 (c) 0.192 (d) 0.0192
28. 28.0.14 × 4 — where does the decimal point go? (a) 0.56 (b) 0.056 (c) 5.6 (d) 0.0056
29. 29.0.14 × 4.6 — where does the decimal point go? (a) 0.00644 (b) 6.44 (c) 0.0644 (d) 0.644
30. 30.0.32 × 26 — where does the decimal point go? (a) 0.0832 (b) 8.32 (c) 83.2 (d) 0.832
31. 31.8.7 × 0.5 — where does the decimal point go? (a) 4.35 (b) 0.435 (c) 43.5 (d) 0.0435
32. 32.7.2 × 0.6 — where does the decimal point go? (a) 0.0432 (b) 4.32 (c) 43.2 (d) 0.432
33. 33.0.69 × 0.2 — where does the decimal point go? (a) 0.00138 (b) 0.138 (c) 1.38 (d) 0.0138
34. 34.0.82 × 6 — where does the decimal point go? (a) 0.492 (b) 0.0492 (c) 49.2 (d) 4.92
35. 35.7.9 × 7 — where does the decimal point go? (a) 0.553 (b) 55.3 (c) 5.53 (d) 553
36. 36.8.6 × 33 — where does the decimal point go? (a) 28.38 (b) 283.8 (c) 2.838 (d) 2838
37. 37.0.33 × 3.5 — where does the decimal point go? (a) 0.01155 (b) 11.55 (c) 0.1155 (d) 1.155
38. 38.3.5 × 0.3 — where does the decimal point go? (a) 10.5 (b) 0.0105 (c) 1.05 (d) 0.105
39. 39.0.85 × 31 — where does the decimal point go? (a) 26.35 (b) 0.2635 (c) 263.5 (d) 2.635
40. 40.0.16 × 21 — where does the decimal point go? (a) 0.0336 (b) 33.6 (c) 3.36 (d) 0.336

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