Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 184 · 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. 1.0.76 × 4.7 — where does the decimal point go? (a) 3.572 (b) 0.03572 (c) 35.72 (d) 0.3572
2. 2.0.94 × 14 — where does the decimal point go? (a) 13.16 (b) 131.6 (c) 1.316 (d) 0.1316
3. 3.0.63 × 1.2 — where does the decimal point go? (a) 0.0756 (b) 0.00756 (c) 7.56 (d) 0.756
4. 4.1.3 × 3 — where does the decimal point go? (a) 39 (b) 0.039 (c) 0.39 (d) 3.9
5. 5.5.2 × 9 — where does the decimal point go? (a) 4.68 (b) 0.468 (c) 468 (d) 46.8
6. 6.6.1 × 0.4 — where does the decimal point go? (a) 2.44 (b) 0.0244 (c) 24.4 (d) 0.244
7. 7.0.28 × 0.3 — where does the decimal point go? (a) 0.84 (b) 0.00084 (c) 0.0084 (d) 0.084
8. 8.0.37 × 3 — where does the decimal point go? (a) 0.0111 (b) 0.111 (c) 1.11 (d) 11.1
9. 9.5.5 × 5 — where does the decimal point go? (a) 2.75 (b) 0.275 (c) 275 (d) 27.5
10. 10.1.4 × 7 — where does the decimal point go? (a) 9.8 (b) 0.98 (c) 0.098 (d) 98
11. 11.0.25 × 0.9 — where does the decimal point go? (a) 0.0225 (b) 0.225 (c) 0.00225 (d) 2.25
12. 12.0.12 × 4 — where does the decimal point go? (a) 4.8 (b) 0.0048 (c) 0.048 (d) 0.48
13. 13.0.12 × 0.8 — where does the decimal point go? (a) 0.00096 (b) 0.0096 (c) 0.096 (d) 0.96
14. 14.0.27 × 0.8 — where does the decimal point go? (a) 0.0216 (b) 2.16 (c) 0.00216 (d) 0.216
15. 15.0.77 × 0.2 — where does the decimal point go? (a) 0.154 (b) 0.00154 (c) 0.0154 (d) 1.54
16. 16.5.7 × 5 — where does the decimal point go? (a) 285 (b) 28.5 (c) 0.285 (d) 2.85
17. 17.1.8 × 2 — where does the decimal point go? (a) 0.36 (b) 0.036 (c) 3.6 (d) 36
18. 18.0.59 × 3.2 — where does the decimal point go? (a) 0.01888 (b) 0.1888 (c) 18.88 (d) 1.888
19. 19.1.4 × 0.3 — where does the decimal point go? (a) 0.0042 (b) 4.2 (c) 0.042 (d) 0.42
20. 20.0.36 × 0.4 — where does the decimal point go? (a) 0.144 (b) 1.44 (c) 0.0144 (d) 0.00144
21. 21.0.63 × 1.6 — where does the decimal point go? (a) 1.008 (b) 0.01008 (c) 0.1008 (d) 10.08
22. 22.7.3 × 7 — where does the decimal point go? (a) 0.511 (b) 51.1 (c) 511 (d) 5.11
23. 23.0.52 × 49 — where does the decimal point go? (a) 25.48 (b) 254.8 (c) 0.2548 (d) 2.548
24. 24.0.48 × 3 — where does the decimal point go? (a) 0.144 (b) 14.4 (c) 0.0144 (d) 1.44
25. 25.6.1 × 2 — where does the decimal point go? (a) 1.22 (b) 0.122 (c) 12.2 (d) 122
26. 26.0.88 × 0.8 — where does the decimal point go? (a) 0.704 (b) 0.0704 (c) 0.00704 (d) 7.04
27. 27.3.4 × 26 — where does the decimal point go? (a) 0.884 (b) 88.4 (c) 884 (d) 8.84
28. 28.0.26 × 6 — where does the decimal point go? (a) 1.56 (b) 15.6 (c) 0.0156 (d) 0.156
29. 29.7.4 × 0.7 — where does the decimal point go? (a) 5.18 (b) 0.0518 (c) 51.8 (d) 0.518
30. 30.1.5 × 0.3 — where does the decimal point go? (a) 0.045 (b) 0.0045 (c) 4.5 (d) 0.45
31. 31.2.5 × 3 — where does the decimal point go? (a) 7.5 (b) 0.75 (c) 0.075 (d) 75
32. 32.6.3 × 0.7 — where does the decimal point go? (a) 44.1 (b) 4.41 (c) 0.441 (d) 0.0441
33. 33.0.88 × 8 — where does the decimal point go? (a) 70.4 (b) 7.04 (c) 0.0704 (d) 0.704
34. 34.0.65 × 3 — where does the decimal point go? (a) 0.195 (b) 0.0195 (c) 19.5 (d) 1.95
35. 35.0.58 × 7 — where does the decimal point go? (a) 0.406 (b) 40.6 (c) 4.06 (d) 0.0406
36. 36.0.34 × 0.8 — where does the decimal point go? (a) 2.72 (b) 0.0272 (c) 0.272 (d) 0.00272
37. 37.2.9 × 2 — where does the decimal point go? (a) 0.58 (b) 5.8 (c) 58 (d) 0.058
38. 38.0.93 × 33 — where does the decimal point go? (a) 30.69 (b) 3.069 (c) 306.9 (d) 0.3069
39. 39.0.77 × 36 — where does the decimal point go? (a) 2.772 (b) 0.2772 (c) 27.72 (d) 277.2
40. 40.5.1 × 3 — where does the decimal point go? (a) 153 (b) 0.153 (c) 1.53 (d) 15.3

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