Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 696 · 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. 1.4.9 × 0.2 — where does the decimal point go? (a) 0.098 (b) 9.8 (c) 0.0098 (d) 0.98
2. 2.1.3 × 7 — where does the decimal point go? (a) 0.091 (b) 0.91 (c) 9.1 (d) 91
3. 3.1.3 × 0.9 — where does the decimal point go? (a) 0.117 (b) 11.7 (c) 0.0117 (d) 1.17
4. 4.7.1 × 0.3 — where does the decimal point go? (a) 0.213 (b) 2.13 (c) 0.0213 (d) 21.3
5. 5.7.4 × 1.7 — where does the decimal point go? (a) 12.58 (b) 1.258 (c) 0.1258 (d) 125.8
6. 6.0.61 × 4.7 — where does the decimal point go? (a) 0.02867 (b) 28.67 (c) 0.2867 (d) 2.867
7. 7.2.6 × 46 — where does the decimal point go? (a) 119.6 (b) 11.96 (c) 1196 (d) 1.196
8. 8.0.36 × 1.1 — where does the decimal point go? (a) 0.00396 (b) 0.0396 (c) 0.396 (d) 3.96
9. 9.0.38 × 4.1 — where does the decimal point go? (a) 15.58 (b) 1.558 (c) 0.01558 (d) 0.1558
10. 10.0.63 × 1.5 — where does the decimal point go? (a) 9.45 (b) 0.945 (c) 0.00945 (d) 0.0945
11. 11.7.7 × 0.3 — where does the decimal point go? (a) 2.31 (b) 0.0231 (c) 0.231 (d) 23.1
12. 12.0.79 × 6 — where does the decimal point go? (a) 4.74 (b) 47.4 (c) 0.474 (d) 0.0474
13. 13.0.67 × 2 — where does the decimal point go? (a) 0.134 (b) 1.34 (c) 13.4 (d) 0.0134
14. 14.4.3 × 0.2 — where does the decimal point go? (a) 0.086 (b) 0.0086 (c) 0.86 (d) 8.6
15. 15.0.21 × 4.1 — where does the decimal point go? (a) 0.00861 (b) 8.61 (c) 0.0861 (d) 0.861
16. 16.6.7 × 37 — where does the decimal point go? (a) 2479 (b) 247.9 (c) 2.479 (d) 24.79
17. 17.0.58 × 9 — where does the decimal point go? (a) 0.522 (b) 5.22 (c) 0.0522 (d) 52.2
18. 18.0.49 × 4.7 — where does the decimal point go? (a) 23.03 (b) 0.2303 (c) 2.303 (d) 0.02303
19. 19.1.5 × 37 — where does the decimal point go? (a) 555 (b) 5.55 (c) 0.555 (d) 55.5
20. 20.6.7 × 0.3 — where does the decimal point go? (a) 0.201 (b) 0.0201 (c) 2.01 (d) 20.1
21. 21.8.1 × 43 — where does the decimal point go? (a) 3483 (b) 348.3 (c) 34.83 (d) 3.483
22. 22.0.87 × 38 — where does the decimal point go? (a) 3.306 (b) 33.06 (c) 330.6 (d) 0.3306
23. 23.7.3 × 29 — where does the decimal point go? (a) 2.117 (b) 2117 (c) 211.7 (d) 21.17
24. 24.7.3 × 4.8 — where does the decimal point go? (a) 0.3504 (b) 35.04 (c) 3.504 (d) 350.4
25. 25.0.45 × 5 — where does the decimal point go? (a) 0.225 (b) 22.5 (c) 2.25 (d) 0.0225
26. 26.0.59 × 12 — where does the decimal point go? (a) 0.0708 (b) 7.08 (c) 0.708 (d) 70.8
27. 27.6.2 × 3.9 — where does the decimal point go? (a) 241.8 (b) 0.2418 (c) 2.418 (d) 24.18
28. 28.8.9 × 22 — where does the decimal point go? (a) 19.58 (b) 195.8 (c) 1.958 (d) 1958
29. 29.4.4 × 9 — where does the decimal point go? (a) 39.6 (b) 3.96 (c) 396 (d) 0.396
30. 30.7.8 × 0.2 — where does the decimal point go? (a) 0.0156 (b) 15.6 (c) 1.56 (d) 0.156
31. 31.0.12 × 0.6 — where does the decimal point go? (a) 0.00072 (b) 0.0072 (c) 0.072 (d) 0.72
32. 32.0.76 × 16 — where does the decimal point go? (a) 121.6 (b) 1.216 (c) 12.16 (d) 0.1216
33. 33.0.61 × 0.8 — where does the decimal point go? (a) 0.488 (b) 0.00488 (c) 0.0488 (d) 4.88
34. 34.0.51 × 0.2 — where does the decimal point go? (a) 0.00102 (b) 1.02 (c) 0.102 (d) 0.0102
35. 35.0.98 × 0.7 — where does the decimal point go? (a) 0.00686 (b) 6.86 (c) 0.686 (d) 0.0686
36. 36.3.1 × 0.7 — where does the decimal point go? (a) 2.17 (b) 0.0217 (c) 21.7 (d) 0.217
37. 37.8.6 × 17 — where does the decimal point go? (a) 1462 (b) 146.2 (c) 14.62 (d) 1.462
38. 38.2.6 × 3.6 — where does the decimal point go? (a) 0.0936 (b) 9.36 (c) 0.936 (d) 93.6
39. 39.0.22 × 34 — where does the decimal point go? (a) 0.0748 (b) 74.8 (c) 7.48 (d) 0.748
40. 40.5.6 × 1.1 — where does the decimal point go? (a) 61.6 (b) 0.0616 (c) 6.16 (d) 0.616

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