Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 998 · 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. 1.2.6 × 0.4 — where does the decimal point go? (a) 0.0104 (b) 10.4 (c) 0.104 (d) 1.04
2. 2.5.2 × 3 — where does the decimal point go? (a) 15.6 (b) 0.156 (c) 1.56 (d) 156
3. 3.8.8 × 0.3 — where does the decimal point go? (a) 26.4 (b) 0.0264 (c) 0.264 (d) 2.64
4. 4.0.65 × 3 — where does the decimal point go? (a) 1.95 (b) 19.5 (c) 0.0195 (d) 0.195
5. 5.2.4 × 1.8 — where does the decimal point go? (a) 43.2 (b) 4.32 (c) 0.0432 (d) 0.432
6. 6.3.3 × 8 — where does the decimal point go? (a) 26.4 (b) 0.264 (c) 264 (d) 2.64
7. 7.0.32 × 0.4 — where does the decimal point go? (a) 1.28 (b) 0.128 (c) 0.0128 (d) 0.00128
8. 8.8.3 × 0.9 — where does the decimal point go? (a) 0.747 (b) 74.7 (c) 7.47 (d) 0.0747
9. 9.3.9 × 0.3 — where does the decimal point go? (a) 0.0117 (b) 0.117 (c) 1.17 (d) 11.7
10. 10.2.4 × 0.8 — where does the decimal point go? (a) 19.2 (b) 0.192 (c) 0.0192 (d) 1.92
11. 11.4.3 × 1.7 — where does the decimal point go? (a) 0.0731 (b) 7.31 (c) 73.1 (d) 0.731
12. 12.0.95 × 0.9 — where does the decimal point go? (a) 0.855 (b) 0.0855 (c) 8.55 (d) 0.00855
13. 13.9.6 × 8 — where does the decimal point go? (a) 0.768 (b) 76.8 (c) 7.68 (d) 768
14. 14.0.14 × 2.6 — where does the decimal point go? (a) 0.00364 (b) 0.0364 (c) 0.364 (d) 3.64
15. 15.0.84 × 1.3 — where does the decimal point go? (a) 1.092 (b) 0.1092 (c) 0.01092 (d) 10.92
16. 16.0.26 × 17 — where does the decimal point go? (a) 4.42 (b) 0.442 (c) 44.2 (d) 0.0442
17. 17.0.18 × 1.6 — where does the decimal point go? (a) 0.288 (b) 0.00288 (c) 0.0288 (d) 2.88
18. 18.4.3 × 0.3 — where does the decimal point go? (a) 12.9 (b) 0.0129 (c) 1.29 (d) 0.129
19. 19.0.69 × 46 — where does the decimal point go? (a) 31.74 (b) 3.174 (c) 317.4 (d) 0.3174
20. 20.5.9 × 4 — where does the decimal point go? (a) 0.236 (b) 2.36 (c) 236 (d) 23.6
21. 21.7.5 × 3 — where does the decimal point go? (a) 0.225 (b) 2.25 (c) 225 (d) 22.5
22. 22.0.35 × 9 — where does the decimal point go? (a) 3.15 (b) 31.5 (c) 0.315 (d) 0.0315
23. 23.0.46 × 8 — where does the decimal point go? (a) 3.68 (b) 36.8 (c) 0.368 (d) 0.0368
24. 24.0.87 × 0.4 — where does the decimal point go? (a) 0.00348 (b) 3.48 (c) 0.0348 (d) 0.348
25. 25.2.9 × 48 — where does the decimal point go? (a) 13.92 (b) 1392 (c) 139.2 (d) 1.392
26. 26.1.3 × 0.5 — where does the decimal point go? (a) 0.065 (b) 6.5 (c) 0.0065 (d) 0.65
27. 27.0.79 × 4 — where does the decimal point go? (a) 0.0316 (b) 0.316 (c) 31.6 (d) 3.16
28. 28.2.1 × 3.4 — where does the decimal point go? (a) 0.0714 (b) 7.14 (c) 71.4 (d) 0.714
29. 29.6.7 × 0.3 — where does the decimal point go? (a) 20.1 (b) 0.0201 (c) 2.01 (d) 0.201
30. 30.6.7 × 3.1 — where does the decimal point go? (a) 20.77 (b) 207.7 (c) 0.2077 (d) 2.077
31. 31.8.7 × 3 — where does the decimal point go? (a) 26.1 (b) 261 (c) 2.61 (d) 0.261
32. 32.1.8 × 4 — where does the decimal point go? (a) 0.72 (b) 72 (c) 0.072 (d) 7.2
33. 33.2.6 × 3 — where does the decimal point go? (a) 0.78 (b) 78 (c) 0.078 (d) 7.8
34. 34.9.3 × 1.6 — where does the decimal point go? (a) 148.8 (b) 0.1488 (c) 14.88 (d) 1.488
35. 35.9.1 × 1.6 — where does the decimal point go? (a) 1.456 (b) 0.1456 (c) 145.6 (d) 14.56
36. 36.2.3 × 3.8 — where does the decimal point go? (a) 8.74 (b) 0.874 (c) 87.4 (d) 0.0874
37. 37.0.19 × 1.9 — where does the decimal point go? (a) 3.61 (b) 0.00361 (c) 0.0361 (d) 0.361
38. 38.0.92 × 0.9 — where does the decimal point go? (a) 0.0828 (b) 8.28 (c) 0.00828 (d) 0.828
39. 39.7.1 × 0.4 — where does the decimal point go? (a) 0.284 (b) 28.4 (c) 0.0284 (d) 2.84
40. 40.0.12 × 0.8 — where does the decimal point go? (a) 0.096 (b) 0.00096 (c) 0.96 (d) 0.0096

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