Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 973 · 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. 1.0.32 × 0.4 — where does the decimal point go? (a) 1.28 (b) 0.0128 (c) 0.128 (d) 0.00128
2. 2.0.32 × 32 — where does the decimal point go? (a) 0.1024 (b) 1.024 (c) 10.24 (d) 102.4
3. 3.0.45 × 35 — where does the decimal point go? (a) 15.75 (b) 1.575 (c) 157.5 (d) 0.1575
4. 4.4.1 × 0.3 — where does the decimal point go? (a) 0.123 (b) 1.23 (c) 0.0123 (d) 12.3
5. 5.7.6 × 0.2 — where does the decimal point go? (a) 0.152 (b) 15.2 (c) 1.52 (d) 0.0152
6. 6.0.32 × 8 — where does the decimal point go? (a) 0.256 (b) 2.56 (c) 25.6 (d) 0.0256
7. 7.6.7 × 3.7 — where does the decimal point go? (a) 2.479 (b) 247.9 (c) 24.79 (d) 0.2479
8. 8.2.8 × 0.4 — where does the decimal point go? (a) 11.2 (b) 1.12 (c) 0.112 (d) 0.0112
9. 9.8.9 × 3.2 — where does the decimal point go? (a) 2.848 (b) 28.48 (c) 0.2848 (d) 284.8
10. 10.0.88 × 13 — where does the decimal point go? (a) 114.4 (b) 11.44 (c) 0.1144 (d) 1.144
11. 11.0.58 × 2 — where does the decimal point go? (a) 0.0116 (b) 0.116 (c) 11.6 (d) 1.16
12. 12.8.7 × 24 — where does the decimal point go? (a) 2.088 (b) 208.8 (c) 2088 (d) 20.88
13. 13.3.5 × 1.9 — where does the decimal point go? (a) 0.0665 (b) 6.65 (c) 66.5 (d) 0.665
14. 14.8.9 × 7 — where does the decimal point go? (a) 0.623 (b) 62.3 (c) 623 (d) 6.23
15. 15.0.14 × 14 — where does the decimal point go? (a) 19.6 (b) 0.0196 (c) 0.196 (d) 1.96
16. 16.8.8 × 32 — where does the decimal point go? (a) 2816 (b) 2.816 (c) 281.6 (d) 28.16
17. 17.9.4 × 4 — where does the decimal point go? (a) 37.6 (b) 3.76 (c) 0.376 (d) 376
18. 18.1.9 × 23 — where does the decimal point go? (a) 4.37 (b) 43.7 (c) 0.437 (d) 437
19. 19.0.36 × 3 — where does the decimal point go? (a) 0.108 (b) 1.08 (c) 10.8 (d) 0.0108
20. 20.5.3 × 34 — where does the decimal point go? (a) 1.802 (b) 1802 (c) 180.2 (d) 18.02
21. 21.1.8 × 0.2 — where does the decimal point go? (a) 0.036 (b) 0.0036 (c) 3.6 (d) 0.36
22. 22.0.48 × 2 — where does the decimal point go? (a) 0.096 (b) 9.6 (c) 0.0096 (d) 0.96
23. 23.0.15 × 4.9 — where does the decimal point go? (a) 0.00735 (b) 0.735 (c) 7.35 (d) 0.0735
24. 24.7.2 × 9 — where does the decimal point go? (a) 0.648 (b) 64.8 (c) 6.48 (d) 648
25. 25.0.68 × 0.9 — where does the decimal point go? (a) 6.12 (b) 0.612 (c) 0.00612 (d) 0.0612
26. 26.5.3 × 37 — where does the decimal point go? (a) 196.1 (b) 19.61 (c) 1961 (d) 1.961
27. 27.0.12 × 2 — where does the decimal point go? (a) 0.24 (b) 0.0024 (c) 2.4 (d) 0.024
28. 28.5.1 × 28 — where does the decimal point go? (a) 142.8 (b) 14.28 (c) 1428 (d) 1.428
29. 29.2.3 × 8 — where does the decimal point go? (a) 1.84 (b) 0.184 (c) 184 (d) 18.4
30. 30.1.6 × 2 — where does the decimal point go? (a) 0.032 (b) 0.32 (c) 3.2 (d) 32
31. 31.0.83 × 0.9 — where does the decimal point go? (a) 7.47 (b) 0.0747 (c) 0.747 (d) 0.00747
32. 32.0.17 × 4.6 — where does the decimal point go? (a) 0.0782 (b) 0.782 (c) 0.00782 (d) 7.82
33. 33.0.77 × 3.6 — where does the decimal point go? (a) 0.2772 (b) 0.02772 (c) 2.772 (d) 27.72
34. 34.0.81 × 2.1 — where does the decimal point go? (a) 1.701 (b) 0.01701 (c) 0.1701 (d) 17.01
35. 35.0.31 × 2.2 — where does the decimal point go? (a) 6.82 (b) 0.682 (c) 0.00682 (d) 0.0682
36. 36.9.7 × 4 — where does the decimal point go? (a) 38.8 (b) 3.88 (c) 0.388 (d) 388
37. 37.0.26 × 0.6 — where does the decimal point go? (a) 0.0156 (b) 0.156 (c) 1.56 (d) 0.00156
38. 38.0.94 × 0.2 — where does the decimal point go? (a) 1.88 (b) 0.0188 (c) 0.188 (d) 0.00188
39. 39.0.72 × 23 — where does the decimal point go? (a) 0.1656 (b) 1.656 (c) 165.6 (d) 16.56
40. 40.3.7 × 4 — where does the decimal point go? (a) 1.48 (b) 0.148 (c) 148 (d) 14.8

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