Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 953 · 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. 1.5.6 × 9 — where does the decimal point go? (a) 0.504 (b) 5.04 (c) 50.4 (d) 504
2. 2.0.82 × 0.6 — where does the decimal point go? (a) 0.492 (b) 4.92 (c) 0.00492 (d) 0.0492
3. 3.8.1 × 2.9 — where does the decimal point go? (a) 2.349 (b) 23.49 (c) 234.9 (d) 0.2349
4. 4.0.93 × 44 — where does the decimal point go? (a) 4.092 (b) 40.92 (c) 409.2 (d) 0.4092
5. 5.0.89 × 0.8 — where does the decimal point go? (a) 0.0712 (b) 0.712 (c) 0.00712 (d) 7.12
6. 6.0.54 × 0.2 — where does the decimal point go? (a) 1.08 (b) 0.00108 (c) 0.0108 (d) 0.108
7. 7.1.3 × 0.4 — where does the decimal point go? (a) 0.52 (b) 5.2 (c) 0.0052 (d) 0.052
8. 8.0.96 × 3.9 — where does the decimal point go? (a) 3.744 (b) 37.44 (c) 0.3744 (d) 0.03744
9. 9.5.7 × 4 — where does the decimal point go? (a) 22.8 (b) 0.228 (c) 228 (d) 2.28
10. 10.6.3 × 0.7 — where does the decimal point go? (a) 0.0441 (b) 0.441 (c) 44.1 (d) 4.41
11. 11.0.65 × 13 — where does the decimal point go? (a) 0.845 (b) 8.45 (c) 0.0845 (d) 84.5
12. 12.7.5 × 4.7 — where does the decimal point go? (a) 3.525 (b) 35.25 (c) 0.3525 (d) 352.5
13. 13.9.3 × 1.5 — where does the decimal point go? (a) 0.1395 (b) 13.95 (c) 139.5 (d) 1.395
14. 14.0.19 × 0.2 — where does the decimal point go? (a) 0.038 (b) 0.0038 (c) 0.38 (d) 0.00038
15. 15.0.82 × 29 — where does the decimal point go? (a) 23.78 (b) 0.2378 (c) 2.378 (d) 237.8
16. 16.5.9 × 0.9 — where does the decimal point go? (a) 5.31 (b) 53.1 (c) 0.531 (d) 0.0531
17. 17.9.3 × 1.4 — where does the decimal point go? (a) 130.2 (b) 1.302 (c) 0.1302 (d) 13.02
18. 18.1.8 × 0.3 — where does the decimal point go? (a) 0.0054 (b) 0.54 (c) 0.054 (d) 5.4
19. 19.2.7 × 4.3 — where does the decimal point go? (a) 1.161 (b) 0.1161 (c) 116.1 (d) 11.61
20. 20.2.4 × 38 — where does the decimal point go? (a) 912 (b) 9.12 (c) 91.2 (d) 0.912
21. 21.0.37 × 4.8 — where does the decimal point go? (a) 1.776 (b) 0.1776 (c) 17.76 (d) 0.01776
22. 22.0.44 × 9 — where does the decimal point go? (a) 0.0396 (b) 0.396 (c) 3.96 (d) 39.6
23. 23.0.15 × 11 — where does the decimal point go? (a) 1.65 (b) 0.0165 (c) 16.5 (d) 0.165
24. 24.1.8 × 42 — where does the decimal point go? (a) 756 (b) 0.756 (c) 7.56 (d) 75.6
25. 25.0.92 × 4 — where does the decimal point go? (a) 3.68 (b) 0.368 (c) 36.8 (d) 0.0368
26. 26.0.28 × 3.2 — where does the decimal point go? (a) 8.96 (b) 0.0896 (c) 0.00896 (d) 0.896
27. 27.0.94 × 4.8 — where does the decimal point go? (a) 4.512 (b) 0.4512 (c) 0.04512 (d) 45.12
28. 28.4.7 × 32 — where does the decimal point go? (a) 150.4 (b) 15.04 (c) 1.504 (d) 1504
29. 29.0.25 × 49 — where does the decimal point go? (a) 122.5 (b) 12.25 (c) 1.225 (d) 0.1225
30. 30.9.8 × 33 — where does the decimal point go? (a) 3.234 (b) 323.4 (c) 3234 (d) 32.34
31. 31.8.8 × 39 — where does the decimal point go? (a) 3432 (b) 343.2 (c) 34.32 (d) 3.432
32. 32.8.1 × 0.4 — where does the decimal point go? (a) 0.0324 (b) 3.24 (c) 0.324 (d) 32.4
33. 33.0.96 × 0.4 — where does the decimal point go? (a) 0.0384 (b) 3.84 (c) 0.384 (d) 0.00384
34. 34.1.3 × 2 — where does the decimal point go? (a) 2.6 (b) 0.26 (c) 26 (d) 0.026
35. 35.0.32 × 7 — where does the decimal point go? (a) 22.4 (b) 0.224 (c) 2.24 (d) 0.0224
36. 36.1.3 × 0.7 — where does the decimal point go? (a) 0.0091 (b) 0.091 (c) 0.91 (d) 9.1
37. 37.6.8 × 0.8 — where does the decimal point go? (a) 54.4 (b) 5.44 (c) 0.0544 (d) 0.544
38. 38.9.2 × 0.8 — where does the decimal point go? (a) 0.0736 (b) 0.736 (c) 7.36 (d) 73.6
39. 39.5.8 × 0.7 — where does the decimal point go? (a) 40.6 (b) 4.06 (c) 0.406 (d) 0.0406
40. 40.7.6 × 0.2 — where does the decimal point go? (a) 0.152 (b) 15.2 (c) 0.0152 (d) 1.52

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