Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 867 · 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. 1.2.2 × 0.4 — where does the decimal point go? (a) 0.88 (b) 0.0088 (c) 0.088 (d) 8.8
2. 2.5.6 × 6 — where does the decimal point go? (a) 3.36 (b) 336 (c) 33.6 (d) 0.336
3. 3.6.4 × 0.7 — where does the decimal point go? (a) 4.48 (b) 44.8 (c) 0.448 (d) 0.0448
4. 4.3.3 × 0.6 — where does the decimal point go? (a) 0.0198 (b) 19.8 (c) 0.198 (d) 1.98
5. 5.5.1 × 5 — where does the decimal point go? (a) 25.5 (b) 2.55 (c) 0.255 (d) 255
6. 6.0.34 × 18 — where does the decimal point go? (a) 6.12 (b) 0.0612 (c) 61.2 (d) 0.612
7. 7.0.15 × 47 — where does the decimal point go? (a) 7.05 (b) 0.0705 (c) 0.705 (d) 70.5
8. 8.1.9 × 2 — where does the decimal point go? (a) 0.38 (b) 3.8 (c) 38 (d) 0.038
9. 9.8.9 × 1.9 — where does the decimal point go? (a) 0.1691 (b) 1.691 (c) 169.1 (d) 16.91
10. 10.5.3 × 37 — where does the decimal point go? (a) 19.61 (b) 1.961 (c) 196.1 (d) 1961
11. 11.0.67 × 38 — where does the decimal point go? (a) 2.546 (b) 0.2546 (c) 254.6 (d) 25.46
12. 12.6.2 × 32 — where does the decimal point go? (a) 1.984 (b) 198.4 (c) 19.84 (d) 1984
13. 13.6.8 × 2 — where does the decimal point go? (a) 0.136 (b) 136 (c) 13.6 (d) 1.36
14. 14.0.38 × 2 — where does the decimal point go? (a) 0.76 (b) 7.6 (c) 0.0076 (d) 0.076
15. 15.0.47 × 3.1 — where does the decimal point go? (a) 0.1457 (b) 0.01457 (c) 14.57 (d) 1.457
16. 16.8.8 × 3.1 — where does the decimal point go? (a) 27.28 (b) 272.8 (c) 0.2728 (d) 2.728
17. 17.0.29 × 13 — where does the decimal point go? (a) 37.7 (b) 3.77 (c) 0.0377 (d) 0.377
18. 18.6.3 × 0.8 — where does the decimal point go? (a) 0.0504 (b) 0.504 (c) 5.04 (d) 50.4
19. 19.0.63 × 4 — where does the decimal point go? (a) 2.52 (b) 0.252 (c) 0.0252 (d) 25.2
20. 20.8.5 × 37 — where does the decimal point go? (a) 3145 (b) 3.145 (c) 314.5 (d) 31.45
21. 21.0.93 × 0.8 — where does the decimal point go? (a) 0.0744 (b) 7.44 (c) 0.00744 (d) 0.744
22. 22.2.7 × 13 — where does the decimal point go? (a) 351 (b) 35.1 (c) 0.351 (d) 3.51
23. 23.4.5 × 2.9 — where does the decimal point go? (a) 1.305 (b) 13.05 (c) 0.1305 (d) 130.5
24. 24.0.35 × 3 — where does the decimal point go? (a) 0.105 (b) 0.0105 (c) 10.5 (d) 1.05
25. 25.3.9 × 18 — where does the decimal point go? (a) 7.02 (b) 70.2 (c) 702 (d) 0.702
26. 26.2.1 × 5 — where does the decimal point go? (a) 1.05 (b) 0.105 (c) 105 (d) 10.5
27. 27.7.2 × 3 — where does the decimal point go? (a) 21.6 (b) 2.16 (c) 216 (d) 0.216
28. 28.8.6 × 39 — where does the decimal point go? (a) 33.54 (b) 3354 (c) 335.4 (d) 3.354
29. 29.3.9 × 1.2 — where does the decimal point go? (a) 0.468 (b) 0.0468 (c) 46.8 (d) 4.68
30. 30.4.9 × 7 — where does the decimal point go? (a) 3.43 (b) 0.343 (c) 343 (d) 34.3
31. 31.0.69 × 31 — where does the decimal point go? (a) 21.39 (b) 0.2139 (c) 213.9 (d) 2.139
32. 32.0.94 × 3.7 — where does the decimal point go? (a) 0.3478 (b) 0.03478 (c) 34.78 (d) 3.478
33. 33.6.2 × 44 — where does the decimal point go? (a) 2728 (b) 272.8 (c) 2.728 (d) 27.28
34. 34.0.91 × 8 — where does the decimal point go? (a) 72.8 (b) 7.28 (c) 0.728 (d) 0.0728
35. 35.4.1 × 2 — where does the decimal point go? (a) 82 (b) 0.082 (c) 8.2 (d) 0.82
36. 36.1.6 × 0.9 — where does the decimal point go? (a) 1.44 (b) 0.0144 (c) 14.4 (d) 0.144
37. 37.1.7 × 26 — where does the decimal point go? (a) 0.442 (b) 442 (c) 4.42 (d) 44.2
38. 38.1.5 × 5 — where does the decimal point go? (a) 0.075 (b) 0.75 (c) 7.5 (d) 75
39. 39.0.93 × 1.7 — where does the decimal point go? (a) 0.01581 (b) 15.81 (c) 0.1581 (d) 1.581
40. 40.0.69 × 7 — where does the decimal point go? (a) 0.0483 (b) 48.3 (c) 0.483 (d) 4.83

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