Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 923 · 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. 1.0.74 × 19 — where does the decimal point go? (a) 0.1406 (b) 140.6 (c) 1.406 (d) 14.06
2. 2.8.1 × 3 — where does the decimal point go? (a) 24.3 (b) 2.43 (c) 243 (d) 0.243
3. 3.0.24 × 11 — where does the decimal point go? (a) 26.4 (b) 2.64 (c) 0.0264 (d) 0.264
4. 4.1.6 × 3 — where does the decimal point go? (a) 4.8 (b) 48 (c) 0.048 (d) 0.48
5. 5.0.69 × 6 — where does the decimal point go? (a) 4.14 (b) 0.0414 (c) 0.414 (d) 41.4
6. 6.1.4 × 0.8 — where does the decimal point go? (a) 0.0112 (b) 1.12 (c) 11.2 (d) 0.112
7. 7.0.53 × 0.7 — where does the decimal point go? (a) 0.0371 (b) 0.371 (c) 0.00371 (d) 3.71
8. 8.6.5 × 25 — where does the decimal point go? (a) 1625 (b) 16.25 (c) 1.625 (d) 162.5
9. 9.8.2 × 0.9 — where does the decimal point go? (a) 0.0738 (b) 0.738 (c) 73.8 (d) 7.38
10. 10.0.84 × 2 — where does the decimal point go? (a) 0.0168 (b) 0.168 (c) 16.8 (d) 1.68
11. 11.0.82 × 16 — where does the decimal point go? (a) 0.1312 (b) 1.312 (c) 13.12 (d) 131.2
12. 12.1.4 × 3 — where does the decimal point go? (a) 0.42 (b) 4.2 (c) 0.042 (d) 42
13. 13.0.54 × 0.4 — where does the decimal point go? (a) 2.16 (b) 0.00216 (c) 0.216 (d) 0.0216
14. 14.8.9 × 4.1 — where does the decimal point go? (a) 36.49 (b) 364.9 (c) 0.3649 (d) 3.649
15. 15.0.94 × 0.9 — where does the decimal point go? (a) 0.00846 (b) 8.46 (c) 0.0846 (d) 0.846
16. 16.0.15 × 0.5 — where does the decimal point go? (a) 0.075 (b) 0.75 (c) 0.0075 (d) 0.00075
17. 17.8.6 × 4.1 — where does the decimal point go? (a) 0.3526 (b) 3.526 (c) 352.6 (d) 35.26
18. 18.9.1 × 0.4 — where does the decimal point go? (a) 0.364 (b) 3.64 (c) 0.0364 (d) 36.4
19. 19.0.64 × 0.2 — where does the decimal point go? (a) 1.28 (b) 0.128 (c) 0.00128 (d) 0.0128
20. 20.0.46 × 2.4 — where does the decimal point go? (a) 11.04 (b) 0.1104 (c) 0.01104 (d) 1.104
21. 21.0.85 × 3 — where does the decimal point go? (a) 2.55 (b) 25.5 (c) 0.255 (d) 0.0255
22. 22.0.26 × 7 — where does the decimal point go? (a) 1.82 (b) 0.182 (c) 0.0182 (d) 18.2
23. 23.1.8 × 37 — where does the decimal point go? (a) 0.666 (b) 666 (c) 66.6 (d) 6.66
24. 24.0.37 × 45 — where does the decimal point go? (a) 16.65 (b) 1.665 (c) 0.1665 (d) 166.5
25. 25.0.22 × 2 — where does the decimal point go? (a) 4.4 (b) 0.0044 (c) 0.044 (d) 0.44
26. 26.0.33 × 3.8 — where does the decimal point go? (a) 1.254 (b) 0.01254 (c) 12.54 (d) 0.1254
27. 27.0.29 × 4.5 — where does the decimal point go? (a) 0.01305 (b) 1.305 (c) 13.05 (d) 0.1305
28. 28.3.1 × 3 — where does the decimal point go? (a) 9.3 (b) 93 (c) 0.093 (d) 0.93
29. 29.3.9 × 2.2 — where does the decimal point go? (a) 85.8 (b) 0.858 (c) 0.0858 (d) 8.58
30. 30.1.6 × 4.8 — where does the decimal point go? (a) 0.0768 (b) 0.768 (c) 76.8 (d) 7.68
31. 31.0.87 × 0.5 — where does the decimal point go? (a) 0.0435 (b) 4.35 (c) 0.435 (d) 0.00435
32. 32.0.75 × 25 — where does the decimal point go? (a) 187.5 (b) 18.75 (c) 1.875 (d) 0.1875
33. 33.6.2 × 7 — where does the decimal point go? (a) 0.434 (b) 4.34 (c) 434 (d) 43.4
34. 34.9.8 × 0.4 — where does the decimal point go? (a) 39.2 (b) 0.0392 (c) 0.392 (d) 3.92
35. 35.0.88 × 0.2 — where does the decimal point go? (a) 0.00176 (b) 1.76 (c) 0.0176 (d) 0.176
36. 36.0.12 × 8 — where does the decimal point go? (a) 9.6 (b) 0.096 (c) 0.96 (d) 0.0096
37. 37.2.5 × 0.9 — where does the decimal point go? (a) 0.225 (b) 0.0225 (c) 2.25 (d) 22.5
38. 38.1.9 × 0.7 — where does the decimal point go? (a) 1.33 (b) 0.0133 (c) 13.3 (d) 0.133
39. 39.2.7 × 0.4 — where does the decimal point go? (a) 10.8 (b) 0.0108 (c) 1.08 (d) 0.108
40. 40.0.93 × 5 — where does the decimal point go? (a) 4.65 (b) 46.5 (c) 0.465 (d) 0.0465

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