Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 982 · 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. 1.2.9 × 9 — where does the decimal point go? (a) 26.1 (b) 0.261 (c) 261 (d) 2.61
2. 2.0.28 × 3.2 — where does the decimal point go? (a) 0.896 (b) 0.00896 (c) 8.96 (d) 0.0896
3. 3.0.64 × 4.1 — where does the decimal point go? (a) 26.24 (b) 0.02624 (c) 0.2624 (d) 2.624
4. 4.6.5 × 0.7 — where does the decimal point go? (a) 0.455 (b) 4.55 (c) 45.5 (d) 0.0455
5. 5.0.97 × 2.1 — where does the decimal point go? (a) 20.37 (b) 0.2037 (c) 2.037 (d) 0.02037
6. 6.4.3 × 0.2 — where does the decimal point go? (a) 8.6 (b) 0.0086 (c) 0.86 (d) 0.086
7. 7.0.51 × 7 — where does the decimal point go? (a) 0.357 (b) 0.0357 (c) 3.57 (d) 35.7
8. 8.0.24 × 0.8 — where does the decimal point go? (a) 1.92 (b) 0.0192 (c) 0.00192 (d) 0.192
9. 9.0.46 × 48 — where does the decimal point go? (a) 0.2208 (b) 2.208 (c) 22.08 (d) 220.8
10. 10.4.4 × 7 — where does the decimal point go? (a) 30.8 (b) 308 (c) 3.08 (d) 0.308
11. 11.0.75 × 39 — where does the decimal point go? (a) 29.25 (b) 2.925 (c) 0.2925 (d) 292.5
12. 12.0.92 × 0.7 — where does the decimal point go? (a) 0.00644 (b) 0.644 (c) 6.44 (d) 0.0644
13. 13.0.74 × 28 — where does the decimal point go? (a) 20.72 (b) 207.2 (c) 0.2072 (d) 2.072
14. 14.0.26 × 26 — where does the decimal point go? (a) 0.0676 (b) 0.676 (c) 67.6 (d) 6.76
15. 15.8.3 × 6 — where does the decimal point go? (a) 0.498 (b) 4.98 (c) 498 (d) 49.8
16. 16.0.95 × 1.9 — where does the decimal point go? (a) 1.805 (b) 0.01805 (c) 18.05 (d) 0.1805
17. 17.0.34 × 0.6 — where does the decimal point go? (a) 2.04 (b) 0.204 (c) 0.0204 (d) 0.00204
18. 18.0.21 × 31 — where does the decimal point go? (a) 0.651 (b) 0.0651 (c) 65.1 (d) 6.51
19. 19.5.7 × 0.4 — where does the decimal point go? (a) 0.0228 (b) 0.228 (c) 22.8 (d) 2.28
20. 20.5.1 × 35 — where does the decimal point go? (a) 178.5 (b) 1785 (c) 1.785 (d) 17.85
21. 21.0.84 × 37 — where does the decimal point go? (a) 0.3108 (b) 31.08 (c) 310.8 (d) 3.108
22. 22.5.6 × 0.6 — where does the decimal point go? (a) 33.6 (b) 0.336 (c) 3.36 (d) 0.0336
23. 23.6.5 × 5 — where does the decimal point go? (a) 32.5 (b) 3.25 (c) 0.325 (d) 325
24. 24.0.31 × 3 — where does the decimal point go? (a) 0.093 (b) 0.93 (c) 0.0093 (d) 9.3
25. 25.0.79 × 0.6 — where does the decimal point go? (a) 0.474 (b) 0.0474 (c) 0.00474 (d) 4.74
26. 26.4.6 × 0.8 — where does the decimal point go? (a) 0.0368 (b) 3.68 (c) 0.368 (d) 36.8
27. 27.0.43 × 17 — where does the decimal point go? (a) 0.0731 (b) 0.731 (c) 73.1 (d) 7.31
28. 28.0.95 × 4.1 — where does the decimal point go? (a) 0.03895 (b) 3.895 (c) 0.3895 (d) 38.95
29. 29.6.7 × 8 — where does the decimal point go? (a) 5.36 (b) 536 (c) 53.6 (d) 0.536
30. 30.1.7 × 8 — where does the decimal point go? (a) 1.36 (b) 0.136 (c) 136 (d) 13.6
31. 31.0.96 × 29 — where does the decimal point go? (a) 2.784 (b) 278.4 (c) 27.84 (d) 0.2784
32. 32.0.52 × 4 — where does the decimal point go? (a) 0.0208 (b) 20.8 (c) 2.08 (d) 0.208
33. 33.0.28 × 3 — where does the decimal point go? (a) 0.84 (b) 0.084 (c) 0.0084 (d) 8.4
34. 34.1.4 × 41 — where does the decimal point go? (a) 57.4 (b) 574 (c) 5.74 (d) 0.574
35. 35.1.2 × 0.7 — where does the decimal point go? (a) 0.084 (b) 8.4 (c) 0.84 (d) 0.0084
36. 36.0.47 × 8 — where does the decimal point go? (a) 0.0376 (b) 0.376 (c) 3.76 (d) 37.6
37. 37.0.26 × 2.6 — where does the decimal point go? (a) 0.676 (b) 0.0676 (c) 6.76 (d) 0.00676
38. 38.3.6 × 4.6 — where does the decimal point go? (a) 1.656 (b) 16.56 (c) 0.1656 (d) 165.6
39. 39.1.9 × 3 — where does the decimal point go? (a) 0.057 (b) 57 (c) 0.57 (d) 5.7
40. 40.0.12 × 7 — where does the decimal point go? (a) 0.84 (b) 8.4 (c) 0.084 (d) 0.0084

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