Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 461 · 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 × 47 — where does the decimal point go? (a) 2.632 (b) 26.32 (c) 2632 (d) 263.2
2. 2.0.64 × 0.6 — where does the decimal point go? (a) 3.84 (b) 0.0384 (c) 0.384 (d) 0.00384
3. 3.0.85 × 13 — where does the decimal point go? (a) 11.05 (b) 1.105 (c) 110.5 (d) 0.1105
4. 4.0.32 × 46 — where does the decimal point go? (a) 147.2 (b) 1.472 (c) 0.1472 (d) 14.72
5. 5.0.18 × 8 — where does the decimal point go? (a) 0.144 (b) 0.0144 (c) 1.44 (d) 14.4
6. 6.2.7 × 2 — where does the decimal point go? (a) 0.054 (b) 54 (c) 0.54 (d) 5.4
7. 7.7.9 × 2.5 — where does the decimal point go? (a) 0.1975 (b) 1.975 (c) 19.75 (d) 197.5
8. 8.0.68 × 21 — where does the decimal point go? (a) 14.28 (b) 1.428 (c) 142.8 (d) 0.1428
9. 9.0.92 × 0.3 — where does the decimal point go? (a) 0.00276 (b) 0.276 (c) 0.0276 (d) 2.76
10. 10.0.51 × 4.8 — where does the decimal point go? (a) 2.448 (b) 0.2448 (c) 0.02448 (d) 24.48
11. 11.0.15 × 0.3 — where does the decimal point go? (a) 0.045 (b) 0.0045 (c) 0.45 (d) 0.00045
12. 12.2.5 × 23 — where does the decimal point go? (a) 57.5 (b) 0.575 (c) 575 (d) 5.75
13. 13.3.2 × 2.2 — where does the decimal point go? (a) 0.704 (b) 7.04 (c) 0.0704 (d) 70.4
14. 14.3.9 × 1.3 — where does the decimal point go? (a) 5.07 (b) 0.507 (c) 0.0507 (d) 50.7
15. 15.0.67 × 5 — where does the decimal point go? (a) 0.335 (b) 3.35 (c) 0.0335 (d) 33.5
16. 16.0.51 × 0.4 — where does the decimal point go? (a) 0.204 (b) 0.0204 (c) 0.00204 (d) 2.04
17. 17.8.9 × 0.8 — where does the decimal point go? (a) 7.12 (b) 0.0712 (c) 71.2 (d) 0.712
18. 18.0.17 × 37 — where does the decimal point go? (a) 6.29 (b) 0.0629 (c) 0.629 (d) 62.9
19. 19.3.6 × 0.9 — where does the decimal point go? (a) 3.24 (b) 0.324 (c) 32.4 (d) 0.0324
20. 20.5.1 × 0.9 — where does the decimal point go? (a) 4.59 (b) 0.459 (c) 45.9 (d) 0.0459
21. 21.4.4 × 1.3 — where does the decimal point go? (a) 5.72 (b) 0.0572 (c) 0.572 (d) 57.2
22. 22.3.3 × 0.2 — where does the decimal point go? (a) 0.0066 (b) 0.066 (c) 0.66 (d) 6.6
23. 23.2.4 × 0.8 — where does the decimal point go? (a) 0.192 (b) 0.0192 (c) 1.92 (d) 19.2
24. 24.0.76 × 7 — where does the decimal point go? (a) 0.0532 (b) 5.32 (c) 0.532 (d) 53.2
25. 25.6.7 × 9 — where does the decimal point go? (a) 0.603 (b) 60.3 (c) 6.03 (d) 603
26. 26.0.83 × 0.4 — where does the decimal point go? (a) 0.0332 (b) 0.332 (c) 0.00332 (d) 3.32
27. 27.0.48 × 4 — where does the decimal point go? (a) 19.2 (b) 0.0192 (c) 0.192 (d) 1.92
28. 28.9.6 × 0.4 — where does the decimal point go? (a) 3.84 (b) 0.384 (c) 0.0384 (d) 38.4
29. 29.0.71 × 7 — where does the decimal point go? (a) 0.0497 (b) 0.497 (c) 4.97 (d) 49.7
30. 30.7.6 × 0.7 — where does the decimal point go? (a) 5.32 (b) 0.532 (c) 53.2 (d) 0.0532
31. 31.9.5 × 0.9 — where does the decimal point go? (a) 0.0855 (b) 0.855 (c) 8.55 (d) 85.5
32. 32.4.4 × 19 — where does the decimal point go? (a) 0.836 (b) 8.36 (c) 83.6 (d) 836
33. 33.0.83 × 35 — where does the decimal point go? (a) 290.5 (b) 2.905 (c) 29.05 (d) 0.2905
34. 34.0.59 × 7 — where does the decimal point go? (a) 0.0413 (b) 4.13 (c) 0.413 (d) 41.3
35. 35.0.51 × 7 — where does the decimal point go? (a) 3.57 (b) 0.0357 (c) 0.357 (d) 35.7
36. 36.1.8 × 26 — where does the decimal point go? (a) 46.8 (b) 4.68 (c) 0.468 (d) 468
37. 37.6.8 × 0.6 — where does the decimal point go? (a) 0.0408 (b) 0.408 (c) 4.08 (d) 40.8
38. 38.0.28 × 8 — where does the decimal point go? (a) 0.0224 (b) 22.4 (c) 0.224 (d) 2.24
39. 39.6.8 × 0.8 — where does the decimal point go? (a) 0.544 (b) 54.4 (c) 5.44 (d) 0.0544
40. 40.0.79 × 2.2 — where does the decimal point go? (a) 17.38 (b) 0.01738 (c) 0.1738 (d) 1.738

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