Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 734 · 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. 1.0.76 × 4.7 — where does the decimal point go? (a) 3.572 (b) 0.3572 (c) 35.72 (d) 0.03572
2. 2.8.6 × 0.4 — where does the decimal point go? (a) 0.0344 (b) 0.344 (c) 34.4 (d) 3.44
3. 3.2.9 × 48 — where does the decimal point go? (a) 1.392 (b) 13.92 (c) 1392 (d) 139.2
4. 4.0.13 × 3.8 — where does the decimal point go? (a) 0.494 (b) 4.94 (c) 0.00494 (d) 0.0494
5. 5.0.96 × 1.7 — where does the decimal point go? (a) 0.1632 (b) 0.01632 (c) 1.632 (d) 16.32
6. 6.0.24 × 0.9 — where does the decimal point go? (a) 0.0216 (b) 2.16 (c) 0.00216 (d) 0.216
7. 7.0.89 × 7 — where does the decimal point go? (a) 62.3 (b) 0.623 (c) 0.0623 (d) 6.23
8. 8.9.6 × 0.9 — where does the decimal point go? (a) 86.4 (b) 0.0864 (c) 8.64 (d) 0.864
9. 9.5.4 × 0.4 — where does the decimal point go? (a) 0.216 (b) 2.16 (c) 0.0216 (d) 21.6
10. 10.0.36 × 0.7 — where does the decimal point go? (a) 2.52 (b) 0.252 (c) 0.0252 (d) 0.00252
11. 11.3.3 × 0.6 — where does the decimal point go? (a) 0.198 (b) 1.98 (c) 0.0198 (d) 19.8
12. 12.1.6 × 0.8 — where does the decimal point go? (a) 0.0128 (b) 12.8 (c) 0.128 (d) 1.28
13. 13.4.8 × 13 — where does the decimal point go? (a) 0.624 (b) 62.4 (c) 624 (d) 6.24
14. 14.7.9 × 46 — where does the decimal point go? (a) 3.634 (b) 3634 (c) 363.4 (d) 36.34
15. 15.8.5 × 0.5 — where does the decimal point go? (a) 4.25 (b) 0.425 (c) 0.0425 (d) 42.5
16. 16.0.83 × 44 — where does the decimal point go? (a) 3.652 (b) 36.52 (c) 0.3652 (d) 365.2
17. 17.3.4 × 3.1 — where does the decimal point go? (a) 10.54 (b) 0.1054 (c) 105.4 (d) 1.054
18. 18.2.3 × 9 — where does the decimal point go? (a) 2.07 (b) 20.7 (c) 0.207 (d) 207
19. 19.0.14 × 2.3 — where does the decimal point go? (a) 0.322 (b) 3.22 (c) 0.0322 (d) 0.00322
20. 20.4.6 × 0.8 — where does the decimal point go? (a) 0.368 (b) 0.0368 (c) 36.8 (d) 3.68
21. 21.0.78 × 0.4 — where does the decimal point go? (a) 3.12 (b) 0.312 (c) 0.0312 (d) 0.00312
22. 22.5.9 × 6 — where does the decimal point go? (a) 354 (b) 35.4 (c) 3.54 (d) 0.354
23. 23.0.43 × 0.4 — where does the decimal point go? (a) 1.72 (b) 0.00172 (c) 0.172 (d) 0.0172
24. 24.0.42 × 27 — where does the decimal point go? (a) 0.1134 (b) 1.134 (c) 113.4 (d) 11.34
25. 25.0.13 × 7 — where does the decimal point go? (a) 0.091 (b) 0.0091 (c) 0.91 (d) 9.1
26. 26.2.5 × 3 — where does the decimal point go? (a) 0.075 (b) 0.75 (c) 75 (d) 7.5
27. 27.0.54 × 4.4 — where does the decimal point go? (a) 0.2376 (b) 23.76 (c) 0.02376 (d) 2.376
28. 28.2.2 × 23 — where does the decimal point go? (a) 0.506 (b) 5.06 (c) 50.6 (d) 506
29. 29.0.13 × 0.5 — where does the decimal point go? (a) 0.00065 (b) 0.0065 (c) 0.65 (d) 0.065
30. 30.8.2 × 4.4 — where does the decimal point go? (a) 36.08 (b) 3.608 (c) 0.3608 (d) 360.8
31. 31.4.1 × 0.4 — where does the decimal point go? (a) 1.64 (b) 0.0164 (c) 0.164 (d) 16.4
32. 32.9.3 × 2.4 — where does the decimal point go? (a) 2.232 (b) 0.2232 (c) 22.32 (d) 223.2
33. 33.9.5 × 0.7 — where does the decimal point go? (a) 66.5 (b) 6.65 (c) 0.665 (d) 0.0665
34. 34.7.7 × 26 — where does the decimal point go? (a) 20.02 (b) 2.002 (c) 2002 (d) 200.2
35. 35.4.9 × 2.9 — where does the decimal point go? (a) 1.421 (b) 0.1421 (c) 142.1 (d) 14.21
36. 36.9.1 × 6 — where does the decimal point go? (a) 546 (b) 5.46 (c) 54.6 (d) 0.546
37. 37.0.66 × 4.8 — where does the decimal point go? (a) 3.168 (b) 0.3168 (c) 31.68 (d) 0.03168
38. 38.3.7 × 0.9 — where does the decimal point go? (a) 0.333 (b) 33.3 (c) 3.33 (d) 0.0333
39. 39.4.1 × 1.4 — where does the decimal point go? (a) 57.4 (b) 0.0574 (c) 5.74 (d) 0.574
40. 40.0.96 × 8 — where does the decimal point go? (a) 76.8 (b) 0.768 (c) 0.0768 (d) 7.68

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