Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 809 · 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. 1.2.7 × 4 — where does the decimal point go? (a) 10.8 (b) 0.108 (c) 1.08 (d) 108
2. 2.1.6 × 0.9 — where does the decimal point go? (a) 1.44 (b) 0.0144 (c) 0.144 (d) 14.4
3. 3.0.74 × 41 — where does the decimal point go? (a) 30.34 (b) 3.034 (c) 303.4 (d) 0.3034
4. 4.9.6 × 4 — where does the decimal point go? (a) 0.384 (b) 3.84 (c) 384 (d) 38.4
5. 5.0.53 × 0.8 — where does the decimal point go? (a) 0.00424 (b) 4.24 (c) 0.0424 (d) 0.424
6. 6.0.67 × 4 — where does the decimal point go? (a) 2.68 (b) 26.8 (c) 0.0268 (d) 0.268
7. 7.6.3 × 1.8 — where does the decimal point go? (a) 0.1134 (b) 11.34 (c) 1.134 (d) 113.4
8. 8.6.7 × 8 — where does the decimal point go? (a) 0.536 (b) 53.6 (c) 5.36 (d) 536
9. 9.7.3 × 8 — where does the decimal point go? (a) 5.84 (b) 58.4 (c) 0.584 (d) 584
10. 10.5.3 × 22 — where does the decimal point go? (a) 1.166 (b) 1166 (c) 116.6 (d) 11.66
11. 11.1.9 × 8 — where does the decimal point go? (a) 15.2 (b) 152 (c) 1.52 (d) 0.152
12. 12.0.18 × 4.1 — where does the decimal point go? (a) 0.00738 (b) 0.738 (c) 7.38 (d) 0.0738
13. 13.3.9 × 0.7 — where does the decimal point go? (a) 0.0273 (b) 27.3 (c) 0.273 (d) 2.73
14. 14.6.6 × 2.4 — where does the decimal point go? (a) 158.4 (b) 15.84 (c) 0.1584 (d) 1.584
15. 15.0.23 × 45 — where does the decimal point go? (a) 103.5 (b) 1.035 (c) 10.35 (d) 0.1035
16. 16.0.27 × 1.5 — where does the decimal point go? (a) 0.0405 (b) 0.405 (c) 0.00405 (d) 4.05
17. 17.0.76 × 3.2 — where does the decimal point go? (a) 24.32 (b) 2.432 (c) 0.02432 (d) 0.2432
18. 18.0.69 × 4.8 — where does the decimal point go? (a) 0.3312 (b) 3.312 (c) 33.12 (d) 0.03312
19. 19.9.2 × 0.7 — where does the decimal point go? (a) 0.644 (b) 6.44 (c) 0.0644 (d) 64.4
20. 20.3.6 × 0.9 — where does the decimal point go? (a) 3.24 (b) 0.0324 (c) 0.324 (d) 32.4
21. 21.0.27 × 4.4 — where does the decimal point go? (a) 11.88 (b) 0.01188 (c) 0.1188 (d) 1.188
22. 22.0.99 × 0.7 — where does the decimal point go? (a) 0.00693 (b) 0.0693 (c) 0.693 (d) 6.93
23. 23.4.7 × 46 — where does the decimal point go? (a) 2.162 (b) 2162 (c) 21.62 (d) 216.2
24. 24.0.74 × 29 — where does the decimal point go? (a) 0.2146 (b) 21.46 (c) 214.6 (d) 2.146
25. 25.6.9 × 34 — where does the decimal point go? (a) 2346 (b) 2.346 (c) 23.46 (d) 234.6
26. 26.0.43 × 17 — where does the decimal point go? (a) 73.1 (b) 0.731 (c) 7.31 (d) 0.0731
27. 27.5.4 × 0.8 — where does the decimal point go? (a) 0.0432 (b) 4.32 (c) 0.432 (d) 43.2
28. 28.2.5 × 0.9 — where does the decimal point go? (a) 0.225 (b) 2.25 (c) 0.0225 (d) 22.5
29. 29.1.9 × 34 — where does the decimal point go? (a) 6.46 (b) 64.6 (c) 646 (d) 0.646
30. 30.2.2 × 0.2 — where does the decimal point go? (a) 0.0044 (b) 0.044 (c) 4.4 (d) 0.44
31. 31.9.6 × 0.3 — where does the decimal point go? (a) 2.88 (b) 0.0288 (c) 28.8 (d) 0.288
32. 32.4.3 × 0.2 — where does the decimal point go? (a) 0.0086 (b) 0.86 (c) 0.086 (d) 8.6
33. 33.6.2 × 12 — where does the decimal point go? (a) 7.44 (b) 74.4 (c) 0.744 (d) 744
34. 34.1.2 × 0.9 — where does the decimal point go? (a) 1.08 (b) 10.8 (c) 0.108 (d) 0.0108
35. 35.0.32 × 6 — where does the decimal point go? (a) 19.2 (b) 1.92 (c) 0.192 (d) 0.0192
36. 36.3.9 × 0.5 — where does the decimal point go? (a) 0.195 (b) 1.95 (c) 0.0195 (d) 19.5
37. 37.0.29 × 0.3 — where does the decimal point go? (a) 0.0087 (b) 0.87 (c) 0.087 (d) 0.00087
38. 38.0.34 × 1.8 — where does the decimal point go? (a) 0.612 (b) 0.0612 (c) 6.12 (d) 0.00612
39. 39.2.3 × 0.2 — where does the decimal point go? (a) 0.0046 (b) 0.46 (c) 4.6 (d) 0.046
40. 40.2.7 × 1.9 — where does the decimal point go? (a) 0.513 (b) 5.13 (c) 0.0513 (d) 51.3

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