Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 934 · 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. 1.3.7 × 0.2 — where does the decimal point go? (a) 0.0074 (b) 0.074 (c) 7.4 (d) 0.74
2. 2.1.7 × 8 — where does the decimal point go? (a) 0.136 (b) 13.6 (c) 1.36 (d) 136
3. 3.0.36 × 8 — where does the decimal point go? (a) 28.8 (b) 2.88 (c) 0.0288 (d) 0.288
4. 4.6.1 × 6 — where does the decimal point go? (a) 3.66 (b) 0.366 (c) 366 (d) 36.6
5. 5.2.4 × 19 — where does the decimal point go? (a) 4.56 (b) 45.6 (c) 456 (d) 0.456
6. 6.0.94 × 31 — where does the decimal point go? (a) 291.4 (b) 29.14 (c) 2.914 (d) 0.2914
7. 7.2.2 × 0.8 — where does the decimal point go? (a) 0.0176 (b) 17.6 (c) 0.176 (d) 1.76
8. 8.6.2 × 11 — where does the decimal point go? (a) 0.682 (b) 682 (c) 6.82 (d) 68.2
9. 9.8.6 × 7 — where does the decimal point go? (a) 6.02 (b) 0.602 (c) 60.2 (d) 602
10. 10.7.9 × 4 — where does the decimal point go? (a) 3.16 (b) 31.6 (c) 0.316 (d) 316
11. 11.0.83 × 27 — where does the decimal point go? (a) 0.2241 (b) 224.1 (c) 22.41 (d) 2.241
12. 12.4.2 × 0.8 — where does the decimal point go? (a) 0.0336 (b) 0.336 (c) 33.6 (d) 3.36
13. 13.0.51 × 49 — where does the decimal point go? (a) 249.9 (b) 0.2499 (c) 2.499 (d) 24.99
14. 14.4.3 × 31 — where does the decimal point go? (a) 13.33 (b) 133.3 (c) 1.333 (d) 1333
15. 15.9.1 × 0.3 — where does the decimal point go? (a) 0.273 (b) 2.73 (c) 0.0273 (d) 27.3
16. 16.0.32 × 1.8 — where does the decimal point go? (a) 0.576 (b) 0.00576 (c) 5.76 (d) 0.0576
17. 17.0.96 × 2 — where does the decimal point go? (a) 1.92 (b) 19.2 (c) 0.192 (d) 0.0192
18. 18.0.52 × 21 — where does the decimal point go? (a) 0.1092 (b) 1.092 (c) 10.92 (d) 109.2
19. 19.1.6 × 3 — where does the decimal point go? (a) 0.48 (b) 48 (c) 4.8 (d) 0.048
20. 20.3.4 × 21 — where does the decimal point go? (a) 7.14 (b) 714 (c) 0.714 (d) 71.4
21. 21.6.5 × 43 — where does the decimal point go? (a) 2.795 (b) 27.95 (c) 279.5 (d) 2795
22. 22.0.99 × 35 — where does the decimal point go? (a) 0.3465 (b) 34.65 (c) 346.5 (d) 3.465
23. 23.0.32 × 43 — where does the decimal point go? (a) 137.6 (b) 13.76 (c) 1.376 (d) 0.1376
24. 24.7.4 × 39 — where does the decimal point go? (a) 288.6 (b) 2.886 (c) 2886 (d) 28.86
25. 25.0.26 × 4 — where does the decimal point go? (a) 0.104 (b) 0.0104 (c) 1.04 (d) 10.4
26. 26.0.95 × 3 — where does the decimal point go? (a) 0.285 (b) 2.85 (c) 0.0285 (d) 28.5
27. 27.0.59 × 0.2 — where does the decimal point go? (a) 0.00118 (b) 0.0118 (c) 1.18 (d) 0.118
28. 28.6.7 × 0.8 — where does the decimal point go? (a) 5.36 (b) 0.0536 (c) 0.536 (d) 53.6
29. 29.6.4 × 7 — where does the decimal point go? (a) 4.48 (b) 0.448 (c) 44.8 (d) 448
30. 30.0.17 × 3.4 — where does the decimal point go? (a) 0.578 (b) 0.0578 (c) 0.00578 (d) 5.78
31. 31.6.2 × 14 — where does the decimal point go? (a) 0.868 (b) 86.8 (c) 868 (d) 8.68
32. 32.3.6 × 41 — where does the decimal point go? (a) 14.76 (b) 1.476 (c) 1476 (d) 147.6
33. 33.0.33 × 2 — where does the decimal point go? (a) 0.66 (b) 0.066 (c) 6.6 (d) 0.0066
34. 34.6.4 × 1.6 — where does the decimal point go? (a) 0.1024 (b) 1.024 (c) 10.24 (d) 102.4
35. 35.9.5 × 4.1 — where does the decimal point go? (a) 0.3895 (b) 38.95 (c) 389.5 (d) 3.895
36. 36.1.3 × 3.5 — where does the decimal point go? (a) 0.0455 (b) 4.55 (c) 45.5 (d) 0.455
37. 37.8.3 × 8 — where does the decimal point go? (a) 664 (b) 6.64 (c) 0.664 (d) 66.4
38. 38.0.72 × 3 — where does the decimal point go? (a) 2.16 (b) 21.6 (c) 0.0216 (d) 0.216
39. 39.0.24 × 0.7 — where does the decimal point go? (a) 0.00168 (b) 0.168 (c) 1.68 (d) 0.0168
40. 40.8.4 × 0.9 — where does the decimal point go? (a) 0.0756 (b) 0.756 (c) 7.56 (d) 75.6

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