Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 10 · 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. 1.1.3 × 0.4 — where does the decimal point go? (a) 5.2 (b) 0.52 (c) 0.0052 (d) 0.052
2. 2.7.3 × 3.8 — where does the decimal point go? (a) 277.4 (b) 27.74 (c) 0.2774 (d) 2.774
3. 3.0.52 × 19 — where does the decimal point go? (a) 98.8 (b) 0.988 (c) 9.88 (d) 0.0988
4. 4.0.23 × 3.6 — where does the decimal point go? (a) 8.28 (b) 0.828 (c) 0.0828 (d) 0.00828
5. 5.4.9 × 1.6 — where does the decimal point go? (a) 78.4 (b) 0.0784 (c) 0.784 (d) 7.84
6. 6.0.99 × 0.3 — where does the decimal point go? (a) 0.297 (b) 2.97 (c) 0.0297 (d) 0.00297
7. 7.0.29 × 3 — where does the decimal point go? (a) 0.087 (b) 0.0087 (c) 8.7 (d) 0.87
8. 8.4.1 × 0.8 — where does the decimal point go? (a) 0.328 (b) 3.28 (c) 0.0328 (d) 32.8
9. 9.0.91 × 5 — where does the decimal point go? (a) 45.5 (b) 0.0455 (c) 0.455 (d) 4.55
10. 10.0.71 × 0.8 — where does the decimal point go? (a) 0.0568 (b) 0.568 (c) 5.68 (d) 0.00568
11. 11.0.26 × 4 — where does the decimal point go? (a) 1.04 (b) 0.104 (c) 0.0104 (d) 10.4
12. 12.0.84 × 0.9 — where does the decimal point go? (a) 0.00756 (b) 0.756 (c) 0.0756 (d) 7.56
13. 13.3.4 × 0.2 — where does the decimal point go? (a) 0.068 (b) 0.68 (c) 0.0068 (d) 6.8
14. 14.0.12 × 0.6 — where does the decimal point go? (a) 0.72 (b) 0.00072 (c) 0.0072 (d) 0.072
15. 15.0.22 × 1.2 — where does the decimal point go? (a) 2.64 (b) 0.00264 (c) 0.264 (d) 0.0264
16. 16.0.89 × 0.6 — where does the decimal point go? (a) 0.0534 (b) 0.00534 (c) 5.34 (d) 0.534
17. 17.6.1 × 8 — where does the decimal point go? (a) 48.8 (b) 488 (c) 0.488 (d) 4.88
18. 18.0.39 × 3 — where does the decimal point go? (a) 11.7 (b) 1.17 (c) 0.117 (d) 0.0117
19. 19.1.9 × 0.4 — where does the decimal point go? (a) 7.6 (b) 0.076 (c) 0.76 (d) 0.0076
20. 20.0.36 × 27 — where does the decimal point go? (a) 9.72 (b) 0.0972 (c) 97.2 (d) 0.972
21. 21.0.57 × 0.5 — where does the decimal point go? (a) 0.285 (b) 2.85 (c) 0.00285 (d) 0.0285
22. 22.5.9 × 6 — where does the decimal point go? (a) 3.54 (b) 354 (c) 0.354 (d) 35.4
23. 23.7.2 × 12 — where does the decimal point go? (a) 8.64 (b) 0.864 (c) 86.4 (d) 864
24. 24.0.22 × 0.6 — where does the decimal point go? (a) 0.0132 (b) 1.32 (c) 0.132 (d) 0.00132
25. 25.0.73 × 0.8 — where does the decimal point go? (a) 5.84 (b) 0.584 (c) 0.00584 (d) 0.0584
26. 26.0.81 × 0.8 — where does the decimal point go? (a) 6.48 (b) 0.00648 (c) 0.648 (d) 0.0648
27. 27.0.29 × 2 — where does the decimal point go? (a) 0.58 (b) 0.058 (c) 0.0058 (d) 5.8
28. 28.0.33 × 21 — where does the decimal point go? (a) 0.0693 (b) 6.93 (c) 0.693 (d) 69.3
29. 29.5.3 × 4 — where does the decimal point go? (a) 21.2 (b) 2.12 (c) 0.212 (d) 212
30. 30.2.4 × 0.2 — where does the decimal point go? (a) 4.8 (b) 0.0048 (c) 0.48 (d) 0.048
31. 31.0.56 × 2 — where does the decimal point go? (a) 0.112 (b) 1.12 (c) 11.2 (d) 0.0112
32. 32.0.84 × 7 — where does the decimal point go? (a) 0.0588 (b) 5.88 (c) 0.588 (d) 58.8
33. 33.3.6 × 0.8 — where does the decimal point go? (a) 0.288 (b) 2.88 (c) 0.0288 (d) 28.8
34. 34.1.9 × 3.9 — where does the decimal point go? (a) 0.741 (b) 0.0741 (c) 74.1 (d) 7.41
35. 35.5.6 × 8 — where does the decimal point go? (a) 4.48 (b) 0.448 (c) 448 (d) 44.8
36. 36.0.28 × 13 — where does the decimal point go? (a) 36.4 (b) 3.64 (c) 0.0364 (d) 0.364
37. 37.2.9 × 0.7 — where does the decimal point go? (a) 2.03 (b) 0.203 (c) 20.3 (d) 0.0203
38. 38.2.2 × 2.8 — where does the decimal point go? (a) 0.616 (b) 61.6 (c) 6.16 (d) 0.0616
39. 39.4.9 × 15 — where does the decimal point go? (a) 7.35 (b) 0.735 (c) 735 (d) 73.5
40. 40.3.4 × 13 — where does the decimal point go? (a) 44.2 (b) 442 (c) 4.42 (d) 0.442

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