Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 265 · 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. 1.0.65 × 0.3 — where does the decimal point go? (a) 0.195 (b) 1.95 (c) 0.0195 (d) 0.00195
2. 2.9.4 × 28 — where does the decimal point go? (a) 2.632 (b) 263.2 (c) 2632 (d) 26.32
3. 3.4.2 × 44 — where does the decimal point go? (a) 1848 (b) 184.8 (c) 18.48 (d) 1.848
4. 4.4.4 × 2.7 — where does the decimal point go? (a) 118.8 (b) 1.188 (c) 11.88 (d) 0.1188
5. 5.2.3 × 4 — where does the decimal point go? (a) 92 (b) 0.92 (c) 0.092 (d) 9.2
6. 6.6.6 × 2 — where does the decimal point go? (a) 132 (b) 1.32 (c) 13.2 (d) 0.132
7. 7.2.4 × 3.4 — where does the decimal point go? (a) 8.16 (b) 0.816 (c) 0.0816 (d) 81.6
8. 8.6.7 × 0.2 — where does the decimal point go? (a) 0.134 (b) 1.34 (c) 13.4 (d) 0.0134
9. 9.5.7 × 1.8 — where does the decimal point go? (a) 10.26 (b) 1.026 (c) 102.6 (d) 0.1026
10. 10.0.79 × 3 — where does the decimal point go? (a) 2.37 (b) 23.7 (c) 0.237 (d) 0.0237
11. 11.8.8 × 2 — where does the decimal point go? (a) 17.6 (b) 0.176 (c) 176 (d) 1.76
12. 12.0.91 × 0.3 — where does the decimal point go? (a) 0.273 (b) 0.00273 (c) 2.73 (d) 0.0273
13. 13.2.2 × 16 — where does the decimal point go? (a) 35.2 (b) 3.52 (c) 352 (d) 0.352
14. 14.0.12 × 1.1 — where does the decimal point go? (a) 0.132 (b) 0.00132 (c) 0.0132 (d) 1.32
15. 15.5.8 × 0.3 — where does the decimal point go? (a) 17.4 (b) 0.174 (c) 1.74 (d) 0.0174
16. 16.7.5 × 0.3 — where does the decimal point go? (a) 2.25 (b) 0.0225 (c) 22.5 (d) 0.225
17. 17.0.25 × 23 — where does the decimal point go? (a) 0.575 (b) 0.0575 (c) 57.5 (d) 5.75
18. 18.4.3 × 35 — where does the decimal point go? (a) 1.505 (b) 15.05 (c) 1505 (d) 150.5
19. 19.0.21 × 4 — where does the decimal point go? (a) 0.084 (b) 0.0084 (c) 8.4 (d) 0.84
20. 20.4.1 × 0.8 — where does the decimal point go? (a) 0.328 (b) 32.8 (c) 3.28 (d) 0.0328
21. 21.9.8 × 43 — where does the decimal point go? (a) 4214 (b) 4.214 (c) 421.4 (d) 42.14
22. 22.0.21 × 46 — where does the decimal point go? (a) 96.6 (b) 0.0966 (c) 0.966 (d) 9.66
23. 23.6.8 × 0.7 — where does the decimal point go? (a) 0.0476 (b) 0.476 (c) 4.76 (d) 47.6
24. 24.7.9 × 0.7 — where does the decimal point go? (a) 5.53 (b) 55.3 (c) 0.553 (d) 0.0553
25. 25.0.69 × 16 — where does the decimal point go? (a) 0.1104 (b) 110.4 (c) 11.04 (d) 1.104
26. 26.0.26 × 2.9 — where does the decimal point go? (a) 0.0754 (b) 0.00754 (c) 0.754 (d) 7.54
27. 27.1.4 × 18 — where does the decimal point go? (a) 252 (b) 25.2 (c) 0.252 (d) 2.52
28. 28.2.6 × 21 — where does the decimal point go? (a) 546 (b) 5.46 (c) 0.546 (d) 54.6
29. 29.0.38 × 39 — where does the decimal point go? (a) 1.482 (b) 0.1482 (c) 148.2 (d) 14.82
30. 30.0.33 × 0.9 — where does the decimal point go? (a) 0.0297 (b) 2.97 (c) 0.297 (d) 0.00297
31. 31.0.27 × 14 — where does the decimal point go? (a) 0.378 (b) 3.78 (c) 37.8 (d) 0.0378
32. 32.4.9 × 0.4 — where does the decimal point go? (a) 1.96 (b) 0.196 (c) 0.0196 (d) 19.6
33. 33.6.4 × 0.8 — where does the decimal point go? (a) 0.512 (b) 5.12 (c) 51.2 (d) 0.0512
34. 34.5.2 × 46 — where does the decimal point go? (a) 2392 (b) 239.2 (c) 23.92 (d) 2.392
35. 35.0.71 × 0.2 — where does the decimal point go? (a) 0.0142 (b) 0.00142 (c) 0.142 (d) 1.42
36. 36.0.75 × 1.9 — where does the decimal point go? (a) 0.01425 (b) 0.1425 (c) 1.425 (d) 14.25
37. 37.1.8 × 2.7 — where does the decimal point go? (a) 4.86 (b) 0.0486 (c) 0.486 (d) 48.6
38. 38.0.23 × 4 — where does the decimal point go? (a) 0.0092 (b) 9.2 (c) 0.092 (d) 0.92
39. 39.5.6 × 9 — where does the decimal point go? (a) 50.4 (b) 0.504 (c) 504 (d) 5.04
40. 40.0.63 × 0.2 — where does the decimal point go? (a) 0.126 (b) 1.26 (c) 0.00126 (d) 0.0126

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