Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 85 · 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. 1.0.26 × 8 — where does the decimal point go? (a) 0.0208 (b) 0.208 (c) 20.8 (d) 2.08
2. 2.0.57 × 9 — where does the decimal point go? (a) 0.0513 (b) 0.513 (c) 5.13 (d) 51.3
3. 3.0.81 × 4 — where does the decimal point go? (a) 3.24 (b) 0.324 (c) 32.4 (d) 0.0324
4. 4.0.51 × 4 — where does the decimal point go? (a) 0.204 (b) 2.04 (c) 0.0204 (d) 20.4
5. 5.3.7 × 15 — where does the decimal point go? (a) 55.5 (b) 555 (c) 0.555 (d) 5.55
6. 6.0.29 × 0.2 — where does the decimal point go? (a) 0.58 (b) 0.0058 (c) 0.00058 (d) 0.058
7. 7.5.3 × 8 — where does the decimal point go? (a) 42.4 (b) 4.24 (c) 0.424 (d) 424
8. 8.7.3 × 47 — where does the decimal point go? (a) 343.1 (b) 3.431 (c) 34.31 (d) 3431
9. 9.7.2 × 33 — where does the decimal point go? (a) 2.376 (b) 237.6 (c) 2376 (d) 23.76
10. 10.4.2 × 7 — where does the decimal point go? (a) 2.94 (b) 294 (c) 29.4 (d) 0.294
11. 11.2.2 × 6 — where does the decimal point go? (a) 13.2 (b) 1.32 (c) 0.132 (d) 132
12. 12.0.92 × 0.9 — where does the decimal point go? (a) 0.0828 (b) 0.828 (c) 0.00828 (d) 8.28
13. 13.6.6 × 48 — where does the decimal point go? (a) 3168 (b) 3.168 (c) 316.8 (d) 31.68
14. 14.9.9 × 7 — where does the decimal point go? (a) 69.3 (b) 693 (c) 6.93 (d) 0.693
15. 15.0.91 × 2.9 — where does the decimal point go? (a) 0.02639 (b) 2.639 (c) 0.2639 (d) 26.39
16. 16.0.94 × 4.7 — where does the decimal point go? (a) 0.4418 (b) 0.04418 (c) 4.418 (d) 44.18
17. 17.4.6 × 0.9 — where does the decimal point go? (a) 0.0414 (b) 0.414 (c) 41.4 (d) 4.14
18. 18.0.77 × 0.6 — where does the decimal point go? (a) 0.00462 (b) 4.62 (c) 0.462 (d) 0.0462
19. 19.0.87 × 3 — where does the decimal point go? (a) 26.1 (b) 0.261 (c) 0.0261 (d) 2.61
20. 20.8.1 × 4 — where does the decimal point go? (a) 32.4 (b) 3.24 (c) 0.324 (d) 324
21. 21.0.65 × 0.7 — where does the decimal point go? (a) 0.455 (b) 0.0455 (c) 4.55 (d) 0.00455
22. 22.7.1 × 3 — where does the decimal point go? (a) 0.213 (b) 2.13 (c) 213 (d) 21.3
23. 23.5.6 × 0.3 — where does the decimal point go? (a) 16.8 (b) 1.68 (c) 0.0168 (d) 0.168
24. 24.0.43 × 1.9 — where does the decimal point go? (a) 8.17 (b) 0.0817 (c) 0.817 (d) 0.00817
25. 25.3.2 × 4.7 — where does the decimal point go? (a) 15.04 (b) 1.504 (c) 150.4 (d) 0.1504
26. 26.1.3 × 0.2 — where does the decimal point go? (a) 0.026 (b) 0.26 (c) 0.0026 (d) 2.6
27. 27.0.98 × 9 — where does the decimal point go? (a) 8.82 (b) 0.882 (c) 88.2 (d) 0.0882
28. 28.2.4 × 0.6 — where does the decimal point go? (a) 1.44 (b) 0.144 (c) 0.0144 (d) 14.4
29. 29.5.2 × 19 — where does the decimal point go? (a) 988 (b) 9.88 (c) 98.8 (d) 0.988
30. 30.0.53 × 0.8 — where does the decimal point go? (a) 0.424 (b) 4.24 (c) 0.00424 (d) 0.0424
31. 31.0.63 × 4.3 — where does the decimal point go? (a) 27.09 (b) 2.709 (c) 0.2709 (d) 0.02709
32. 32.9.4 × 3.1 — where does the decimal point go? (a) 0.2914 (b) 291.4 (c) 29.14 (d) 2.914
33. 33.0.52 × 7 — where does the decimal point go? (a) 3.64 (b) 0.0364 (c) 36.4 (d) 0.364
34. 34.0.53 × 2 — where does the decimal point go? (a) 0.0106 (b) 10.6 (c) 0.106 (d) 1.06
35. 35.0.58 × 8 — where does the decimal point go? (a) 4.64 (b) 0.0464 (c) 0.464 (d) 46.4
36. 36.9.7 × 0.4 — where does the decimal point go? (a) 3.88 (b) 38.8 (c) 0.0388 (d) 0.388
37. 37.0.77 × 1.8 — where does the decimal point go? (a) 0.01386 (b) 0.1386 (c) 1.386 (d) 13.86
38. 38.5.8 × 26 — where does the decimal point go? (a) 15.08 (b) 1.508 (c) 1508 (d) 150.8
39. 39.2.8 × 3.9 — where does the decimal point go? (a) 109.2 (b) 0.1092 (c) 1.092 (d) 10.92
40. 40.2.3 × 28 — where does the decimal point go? (a) 64.4 (b) 644 (c) 0.644 (d) 6.44

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