Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 526 · 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. 1.2.4 × 3 — where does the decimal point go? (a) 0.072 (b) 7.2 (c) 72 (d) 0.72
2. 2.0.69 × 0.4 — where does the decimal point go? (a) 2.76 (b) 0.00276 (c) 0.276 (d) 0.0276
3. 3.5.2 × 3.3 — where does the decimal point go? (a) 17.16 (b) 1.716 (c) 0.1716 (d) 171.6
4. 4.0.15 × 2.3 — where does the decimal point go? (a) 0.345 (b) 3.45 (c) 0.0345 (d) 0.00345
5. 5.0.61 × 4.1 — where does the decimal point go? (a) 0.02501 (b) 0.2501 (c) 2.501 (d) 25.01
6. 6.4.7 × 0.2 — where does the decimal point go? (a) 0.094 (b) 0.0094 (c) 0.94 (d) 9.4
7. 7.3.1 × 3.5 — where does the decimal point go? (a) 10.85 (b) 1.085 (c) 0.1085 (d) 108.5
8. 8.1.4 × 38 — where does the decimal point go? (a) 53.2 (b) 5.32 (c) 532 (d) 0.532
9. 9.0.84 × 26 — where does the decimal point go? (a) 2.184 (b) 21.84 (c) 0.2184 (d) 218.4
10. 10.8.1 × 4.1 — where does the decimal point go? (a) 33.21 (b) 332.1 (c) 3.321 (d) 0.3321
11. 11.2.1 × 3.9 — where does the decimal point go? (a) 81.9 (b) 0.0819 (c) 0.819 (d) 8.19
12. 12.6.6 × 37 — where does the decimal point go? (a) 2442 (b) 24.42 (c) 244.2 (d) 2.442
13. 13.0.33 × 8 — where does the decimal point go? (a) 26.4 (b) 0.264 (c) 0.0264 (d) 2.64
14. 14.9.9 × 4 — where does the decimal point go? (a) 3.96 (b) 39.6 (c) 0.396 (d) 396
15. 15.0.92 × 0.3 — where does the decimal point go? (a) 0.0276 (b) 0.276 (c) 0.00276 (d) 2.76
16. 16.0.29 × 0.2 — where does the decimal point go? (a) 0.0058 (b) 0.58 (c) 0.00058 (d) 0.058
17. 17.2.9 × 8 — where does the decimal point go? (a) 0.232 (b) 2.32 (c) 232 (d) 23.2
18. 18.2.1 × 0.8 — where does the decimal point go? (a) 1.68 (b) 16.8 (c) 0.168 (d) 0.0168
19. 19.4.8 × 8 — where does the decimal point go? (a) 38.4 (b) 0.384 (c) 3.84 (d) 384
20. 20.3.7 × 2 — where does the decimal point go? (a) 0.074 (b) 7.4 (c) 0.74 (d) 74
21. 21.0.71 × 3.7 — where does the decimal point go? (a) 2.627 (b) 0.02627 (c) 26.27 (d) 0.2627
22. 22.0.86 × 0.8 — where does the decimal point go? (a) 0.688 (b) 0.00688 (c) 0.0688 (d) 6.88
23. 23.5.8 × 36 — where does the decimal point go? (a) 2.088 (b) 208.8 (c) 2088 (d) 20.88
24. 24.4.8 × 3.3 — where does the decimal point go? (a) 158.4 (b) 0.1584 (c) 15.84 (d) 1.584
25. 25.4.7 × 0.5 — where does the decimal point go? (a) 2.35 (b) 0.235 (c) 23.5 (d) 0.0235
26. 26.3.4 × 4.6 — where does the decimal point go? (a) 156.4 (b) 15.64 (c) 1.564 (d) 0.1564
27. 27.0.36 × 22 — where does the decimal point go? (a) 0.0792 (b) 0.792 (c) 7.92 (d) 79.2
28. 28.0.63 × 3 — where does the decimal point go? (a) 0.0189 (b) 18.9 (c) 1.89 (d) 0.189
29. 29.0.73 × 1.8 — where does the decimal point go? (a) 0.1314 (b) 1.314 (c) 13.14 (d) 0.01314
30. 30.0.44 × 9 — where does the decimal point go? (a) 0.0396 (b) 0.396 (c) 3.96 (d) 39.6
31. 31.9.9 × 0.8 — where does the decimal point go? (a) 0.0792 (b) 0.792 (c) 79.2 (d) 7.92
32. 32.7.3 × 13 — where does the decimal point go? (a) 0.949 (b) 949 (c) 94.9 (d) 9.49
33. 33.7.2 × 36 — where does the decimal point go? (a) 25.92 (b) 2592 (c) 259.2 (d) 2.592
34. 34.0.18 × 8 — where does the decimal point go? (a) 14.4 (b) 1.44 (c) 0.0144 (d) 0.144
35. 35.9.4 × 0.7 — where does the decimal point go? (a) 65.8 (b) 6.58 (c) 0.0658 (d) 0.658
36. 36.0.96 × 1.8 — where does the decimal point go? (a) 0.1728 (b) 17.28 (c) 0.01728 (d) 1.728
37. 37.0.12 × 2 — where does the decimal point go? (a) 0.0024 (b) 0.24 (c) 2.4 (d) 0.024
38. 38.4.8 × 32 — where does the decimal point go? (a) 1536 (b) 1.536 (c) 15.36 (d) 153.6
39. 39.2.3 × 34 — where does the decimal point go? (a) 78.2 (b) 0.782 (c) 7.82 (d) 782
40. 40.0.47 × 7 — where does the decimal point go? (a) 32.9 (b) 0.329 (c) 0.0329 (d) 3.29

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