Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 489 · 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. 1.8.6 × 0.6 — where does the decimal point go? (a) 0.0516 (b) 0.516 (c) 51.6 (d) 5.16
2. 2.9.1 × 0.6 — where does the decimal point go? (a) 5.46 (b) 54.6 (c) 0.546 (d) 0.0546
3. 3.0.46 × 3.1 — where does the decimal point go? (a) 0.01426 (b) 0.1426 (c) 14.26 (d) 1.426
4. 4.8.4 × 0.9 — where does the decimal point go? (a) 0.756 (b) 75.6 (c) 7.56 (d) 0.0756
5. 5.8.9 × 4.6 — where does the decimal point go? (a) 0.4094 (b) 409.4 (c) 40.94 (d) 4.094
6. 6.3.9 × 0.3 — where does the decimal point go? (a) 0.117 (b) 0.0117 (c) 11.7 (d) 1.17
7. 7.0.58 × 6 — where does the decimal point go? (a) 34.8 (b) 0.0348 (c) 3.48 (d) 0.348
8. 8.8.5 × 0.7 — where does the decimal point go? (a) 59.5 (b) 0.595 (c) 5.95 (d) 0.0595
9. 9.7.4 × 8 — where does the decimal point go? (a) 59.2 (b) 0.592 (c) 5.92 (d) 592
10. 10.0.52 × 3.7 — where does the decimal point go? (a) 0.01924 (b) 0.1924 (c) 19.24 (d) 1.924
11. 11.0.19 × 1.1 — where does the decimal point go? (a) 0.00209 (b) 0.0209 (c) 2.09 (d) 0.209
12. 12.2.1 × 29 — where does the decimal point go? (a) 60.9 (b) 6.09 (c) 609 (d) 0.609
13. 13.5.1 × 0.3 — where does the decimal point go? (a) 0.0153 (b) 15.3 (c) 1.53 (d) 0.153
14. 14.5.8 × 4.8 — where does the decimal point go? (a) 278.4 (b) 27.84 (c) 0.2784 (d) 2.784
15. 15.8.3 × 32 — where does the decimal point go? (a) 265.6 (b) 26.56 (c) 2656 (d) 2.656
16. 16.1.3 × 4.9 — where does the decimal point go? (a) 0.637 (b) 63.7 (c) 0.0637 (d) 6.37
17. 17.3.3 × 7 — where does the decimal point go? (a) 23.1 (b) 2.31 (c) 231 (d) 0.231
18. 18.7.9 × 44 — where does the decimal point go? (a) 34.76 (b) 3.476 (c) 347.6 (d) 3476
19. 19.9.8 × 0.8 — where does the decimal point go? (a) 7.84 (b) 0.784 (c) 0.0784 (d) 78.4
20. 20.0.33 × 1.8 — where does the decimal point go? (a) 0.0594 (b) 5.94 (c) 0.594 (d) 0.00594
21. 21.9.3 × 0.3 — where does the decimal point go? (a) 0.0279 (b) 0.279 (c) 27.9 (d) 2.79
22. 22.6.8 × 0.3 — where does the decimal point go? (a) 0.0204 (b) 20.4 (c) 0.204 (d) 2.04
23. 23.2.2 × 1.2 — where does the decimal point go? (a) 0.0264 (b) 26.4 (c) 0.264 (d) 2.64
24. 24.0.67 × 0.2 — where does the decimal point go? (a) 0.134 (b) 1.34 (c) 0.0134 (d) 0.00134
25. 25.9.7 × 9 — where does the decimal point go? (a) 87.3 (b) 873 (c) 8.73 (d) 0.873
26. 26.3.4 × 0.9 — where does the decimal point go? (a) 0.0306 (b) 0.306 (c) 3.06 (d) 30.6
27. 27.0.25 × 0.9 — where does the decimal point go? (a) 2.25 (b) 0.0225 (c) 0.225 (d) 0.00225
28. 28.5.3 × 1.9 — where does the decimal point go? (a) 100.7 (b) 10.07 (c) 1.007 (d) 0.1007
29. 29.4.7 × 24 — where does the decimal point go? (a) 1.128 (b) 112.8 (c) 11.28 (d) 1128
30. 30.7.8 × 2.6 — where does the decimal point go? (a) 2.028 (b) 202.8 (c) 20.28 (d) 0.2028
31. 31.7.8 × 2 — where does the decimal point go? (a) 0.156 (b) 156 (c) 1.56 (d) 15.6
32. 32.6.8 × 0.8 — where does the decimal point go? (a) 0.544 (b) 0.0544 (c) 5.44 (d) 54.4
33. 33.0.97 × 6 — where does the decimal point go? (a) 5.82 (b) 0.582 (c) 0.0582 (d) 58.2
34. 34.0.53 × 0.5 — where does the decimal point go? (a) 0.00265 (b) 2.65 (c) 0.265 (d) 0.0265
35. 35.5.4 × 3.1 — where does the decimal point go? (a) 167.4 (b) 1.674 (c) 16.74 (d) 0.1674
36. 36.0.12 × 0.4 — where does the decimal point go? (a) 0.48 (b) 0.048 (c) 0.0048 (d) 0.00048
37. 37.7.3 × 3 — where does the decimal point go? (a) 0.219 (b) 2.19 (c) 219 (d) 21.9
38. 38.0.94 × 3 — where does the decimal point go? (a) 0.282 (b) 2.82 (c) 28.2 (d) 0.0282
39. 39.8.8 × 4.8 — where does the decimal point go? (a) 42.24 (b) 4.224 (c) 0.4224 (d) 422.4
40. 40.0.76 × 0.3 — where does the decimal point go? (a) 0.0228 (b) 0.00228 (c) 0.228 (d) 2.28

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