Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 221 · 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. 1.0.84 × 36 — where does the decimal point go? (a) 30.24 (b) 3.024 (c) 302.4 (d) 0.3024
2. 2.2.3 × 0.8 — where does the decimal point go? (a) 0.0184 (b) 1.84 (c) 0.184 (d) 18.4
3. 3.0.51 × 2.7 — where does the decimal point go? (a) 0.01377 (b) 1.377 (c) 0.1377 (d) 13.77
4. 4.0.74 × 0.2 — where does the decimal point go? (a) 0.148 (b) 1.48 (c) 0.00148 (d) 0.0148
5. 5.0.44 × 6 — where does the decimal point go? (a) 2.64 (b) 0.264 (c) 26.4 (d) 0.0264
6. 6.0.77 × 0.6 — where does the decimal point go? (a) 4.62 (b) 0.462 (c) 0.0462 (d) 0.00462
7. 7.5.8 × 46 — where does the decimal point go? (a) 266.8 (b) 2.668 (c) 2668 (d) 26.68
8. 8.3.2 × 18 — where does the decimal point go? (a) 57.6 (b) 5.76 (c) 576 (d) 0.576
9. 9.2.6 × 0.2 — where does the decimal point go? (a) 0.0052 (b) 5.2 (c) 0.052 (d) 0.52
10. 10.0.83 × 27 — where does the decimal point go? (a) 0.2241 (b) 224.1 (c) 22.41 (d) 2.241
11. 11.3.3 × 7 — where does the decimal point go? (a) 0.231 (b) 2.31 (c) 23.1 (d) 231
12. 12.0.23 × 3.1 — where does the decimal point go? (a) 0.713 (b) 0.0713 (c) 0.00713 (d) 7.13
13. 13.2.4 × 0.6 — where does the decimal point go? (a) 0.0144 (b) 1.44 (c) 0.144 (d) 14.4
14. 14.0.81 × 2 — where does the decimal point go? (a) 1.62 (b) 16.2 (c) 0.0162 (d) 0.162
15. 15.9.2 × 0.7 — where does the decimal point go? (a) 0.0644 (b) 64.4 (c) 0.644 (d) 6.44
16. 16.9.6 × 2.7 — where does the decimal point go? (a) 259.2 (b) 2.592 (c) 0.2592 (d) 25.92
17. 17.9.1 × 6 — where does the decimal point go? (a) 0.546 (b) 5.46 (c) 54.6 (d) 546
18. 18.0.68 × 11 — where does the decimal point go? (a) 74.8 (b) 0.748 (c) 7.48 (d) 0.0748
19. 19.7.9 × 3 — where does the decimal point go? (a) 23.7 (b) 0.237 (c) 2.37 (d) 237
20. 20.0.92 × 11 — where does the decimal point go? (a) 10.12 (b) 0.1012 (c) 101.2 (d) 1.012
21. 21.4.5 × 0.3 — where does the decimal point go? (a) 0.135 (b) 13.5 (c) 1.35 (d) 0.0135
22. 22.2.4 × 2.2 — where does the decimal point go? (a) 52.8 (b) 5.28 (c) 0.0528 (d) 0.528
23. 23.5.9 × 3.1 — where does the decimal point go? (a) 182.9 (b) 0.1829 (c) 18.29 (d) 1.829
24. 24.0.42 × 0.2 — where does the decimal point go? (a) 0.00084 (b) 0.84 (c) 0.084 (d) 0.0084
25. 25.1.7 × 32 — where does the decimal point go? (a) 0.544 (b) 54.4 (c) 5.44 (d) 544
26. 26.0.91 × 9 — where does the decimal point go? (a) 0.0819 (b) 81.9 (c) 8.19 (d) 0.819
27. 27.7.1 × 37 — where does the decimal point go? (a) 26.27 (b) 262.7 (c) 2627 (d) 2.627
28. 28.9.5 × 1.1 — where does the decimal point go? (a) 1.045 (b) 104.5 (c) 0.1045 (d) 10.45
29. 29.0.21 × 0.3 — where does the decimal point go? (a) 0.0063 (b) 0.63 (c) 0.063 (d) 0.00063
30. 30.3.7 × 0.5 — where does the decimal point go? (a) 1.85 (b) 0.0185 (c) 18.5 (d) 0.185
31. 31.3.3 × 9 — where does the decimal point go? (a) 297 (b) 0.297 (c) 29.7 (d) 2.97
32. 32.6.7 × 0.7 — where does the decimal point go? (a) 4.69 (b) 46.9 (c) 0.0469 (d) 0.469
33. 33.3.6 × 4 — where does the decimal point go? (a) 14.4 (b) 0.144 (c) 1.44 (d) 144
34. 34.0.19 × 0.6 — where does the decimal point go? (a) 0.114 (b) 0.0114 (c) 1.14 (d) 0.00114
35. 35.1.3 × 4.1 — where does the decimal point go? (a) 5.33 (b) 0.533 (c) 53.3 (d) 0.0533
36. 36.6.7 × 6 — where does the decimal point go? (a) 4.02 (b) 40.2 (c) 0.402 (d) 402
37. 37.9.9 × 35 — where does the decimal point go? (a) 3465 (b) 34.65 (c) 346.5 (d) 3.465
38. 38.0.78 × 8 — where does the decimal point go? (a) 0.624 (b) 6.24 (c) 0.0624 (d) 62.4
39. 39.0.21 × 1.1 — where does the decimal point go? (a) 0.231 (b) 0.0231 (c) 0.00231 (d) 2.31
40. 40.7.4 × 36 — where does the decimal point go? (a) 26.64 (b) 2664 (c) 2.664 (d) 266.4

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