Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 771 · 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. 1.0.36 × 0.8 — where does the decimal point go? (a) 0.288 (b) 0.0288 (c) 0.00288 (d) 2.88
2. 2.4.8 × 49 — where does the decimal point go? (a) 235.2 (b) 23.52 (c) 2352 (d) 2.352
3. 3.7.7 × 4.8 — where does the decimal point go? (a) 369.6 (b) 3.696 (c) 36.96 (d) 0.3696
4. 4.0.73 × 8 — where does the decimal point go? (a) 5.84 (b) 58.4 (c) 0.584 (d) 0.0584
5. 5.6.6 × 12 — where does the decimal point go? (a) 0.792 (b) 792 (c) 79.2 (d) 7.92
6. 6.7.6 × 21 — where does the decimal point go? (a) 1596 (b) 159.6 (c) 15.96 (d) 1.596
7. 7.0.92 × 6 — where does the decimal point go? (a) 5.52 (b) 55.2 (c) 0.0552 (d) 0.552
8. 8.0.21 × 3 — where does the decimal point go? (a) 0.63 (b) 0.0063 (c) 6.3 (d) 0.063
9. 9.5.2 × 8 — where does the decimal point go? (a) 416 (b) 4.16 (c) 0.416 (d) 41.6
10. 10.8.1 × 44 — where does the decimal point go? (a) 35.64 (b) 356.4 (c) 3564 (d) 3.564
11. 11.7.6 × 0.8 — where does the decimal point go? (a) 0.0608 (b) 6.08 (c) 0.608 (d) 60.8
12. 12.0.97 × 0.7 — where does the decimal point go? (a) 6.79 (b) 0.00679 (c) 0.0679 (d) 0.679
13. 13.0.99 × 5 — where does the decimal point go? (a) 4.95 (b) 0.495 (c) 49.5 (d) 0.0495
14. 14.8.6 × 11 — where does the decimal point go? (a) 94.6 (b) 946 (c) 9.46 (d) 0.946
15. 15.5.9 × 1.4 — where does the decimal point go? (a) 8.26 (b) 0.0826 (c) 82.6 (d) 0.826
16. 16.0.77 × 7 — where does the decimal point go? (a) 5.39 (b) 0.539 (c) 53.9 (d) 0.0539
17. 17.0.96 × 29 — where does the decimal point go? (a) 278.4 (b) 0.2784 (c) 27.84 (d) 2.784
18. 18.1.6 × 18 — where does the decimal point go? (a) 288 (b) 28.8 (c) 0.288 (d) 2.88
19. 19.0.39 × 8 — where does the decimal point go? (a) 0.0312 (b) 31.2 (c) 3.12 (d) 0.312
20. 20.0.24 × 2 — where does the decimal point go? (a) 0.0048 (b) 0.48 (c) 0.048 (d) 4.8
21. 21.0.69 × 17 — where does the decimal point go? (a) 117.3 (b) 1.173 (c) 0.1173 (d) 11.73
22. 22.3.4 × 0.4 — where does the decimal point go? (a) 1.36 (b) 13.6 (c) 0.136 (d) 0.0136
23. 23.0.36 × 16 — where does the decimal point go? (a) 5.76 (b) 0.576 (c) 0.0576 (d) 57.6
24. 24.0.51 × 0.9 — where does the decimal point go? (a) 0.459 (b) 0.00459 (c) 4.59 (d) 0.0459
25. 25.0.86 × 0.9 — where does the decimal point go? (a) 0.774 (b) 7.74 (c) 0.00774 (d) 0.0774
26. 26.0.59 × 0.4 — where does the decimal point go? (a) 2.36 (b) 0.00236 (c) 0.236 (d) 0.0236
27. 27.1.5 × 41 — where does the decimal point go? (a) 61.5 (b) 6.15 (c) 0.615 (d) 615
28. 28.3.5 × 2.3 — where does the decimal point go? (a) 8.05 (b) 0.805 (c) 0.0805 (d) 80.5
29. 29.8.7 × 24 — where does the decimal point go? (a) 208.8 (b) 20.88 (c) 2088 (d) 2.088
30. 30.0.85 × 0.7 — where does the decimal point go? (a) 0.595 (b) 5.95 (c) 0.0595 (d) 0.00595
31. 31.0.42 × 34 — where does the decimal point go? (a) 0.1428 (b) 142.8 (c) 1.428 (d) 14.28
32. 32.9.5 × 5 — where does the decimal point go? (a) 475 (b) 4.75 (c) 47.5 (d) 0.475
33. 33.0.33 × 6 — where does the decimal point go? (a) 19.8 (b) 0.198 (c) 1.98 (d) 0.0198
34. 34.0.69 × 1.9 — where does the decimal point go? (a) 13.11 (b) 1.311 (c) 0.01311 (d) 0.1311
35. 35.3.2 × 6 — where does the decimal point go? (a) 19.2 (b) 0.192 (c) 1.92 (d) 192
36. 36.5.3 × 4.6 — where does the decimal point go? (a) 24.38 (b) 0.2438 (c) 2.438 (d) 243.8
37. 37.9.4 × 0.6 — where does the decimal point go? (a) 0.564 (b) 0.0564 (c) 56.4 (d) 5.64
38. 38.9.2 × 8 — where does the decimal point go? (a) 73.6 (b) 7.36 (c) 736 (d) 0.736
39. 39.3.4 × 2 — where does the decimal point go? (a) 0.068 (b) 68 (c) 0.68 (d) 6.8
40. 40.8.1 × 0.5 — where does the decimal point go? (a) 4.05 (b) 0.0405 (c) 40.5 (d) 0.405

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