Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 852 · 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. 1.1.3 × 3.4 — where does the decimal point go? (a) 4.42 (b) 0.0442 (c) 44.2 (d) 0.442
2. 2.6.5 × 41 — where does the decimal point go? (a) 26.65 (b) 2665 (c) 2.665 (d) 266.5
3. 3.5.1 × 6 — where does the decimal point go? (a) 30.6 (b) 3.06 (c) 306 (d) 0.306
4. 4.1.8 × 0.3 — where does the decimal point go? (a) 0.54 (b) 0.054 (c) 5.4 (d) 0.0054
5. 5.0.14 × 14 — where does the decimal point go? (a) 19.6 (b) 0.196 (c) 1.96 (d) 0.0196
6. 6.3.4 × 28 — where does the decimal point go? (a) 95.2 (b) 952 (c) 0.952 (d) 9.52
7. 7.0.34 × 2.7 — where does the decimal point go? (a) 0.918 (b) 0.00918 (c) 9.18 (d) 0.0918
8. 8.7.1 × 24 — where does the decimal point go? (a) 17.04 (b) 170.4 (c) 1704 (d) 1.704
9. 9.0.89 × 7 — where does the decimal point go? (a) 6.23 (b) 62.3 (c) 0.623 (d) 0.0623
10. 10.0.52 × 0.4 — where does the decimal point go? (a) 2.08 (b) 0.0208 (c) 0.00208 (d) 0.208
11. 11.7.3 × 0.6 — where does the decimal point go? (a) 0.0438 (b) 4.38 (c) 0.438 (d) 43.8
12. 12.3.9 × 1.1 — where does the decimal point go? (a) 4.29 (b) 42.9 (c) 0.429 (d) 0.0429
13. 13.7.8 × 0.2 — where does the decimal point go? (a) 0.156 (b) 0.0156 (c) 15.6 (d) 1.56
14. 14.4.5 × 0.9 — where does the decimal point go? (a) 0.0405 (b) 4.05 (c) 0.405 (d) 40.5
15. 15.4.3 × 0.8 — where does the decimal point go? (a) 34.4 (b) 0.0344 (c) 3.44 (d) 0.344
16. 16.0.71 × 0.3 — where does the decimal point go? (a) 0.00213 (b) 0.213 (c) 2.13 (d) 0.0213
17. 17.0.41 × 25 — where does the decimal point go? (a) 10.25 (b) 1.025 (c) 102.5 (d) 0.1025
18. 18.0.59 × 4 — where does the decimal point go? (a) 2.36 (b) 0.0236 (c) 23.6 (d) 0.236
19. 19.8.1 × 7 — where does the decimal point go? (a) 56.7 (b) 0.567 (c) 567 (d) 5.67
20. 20.0.37 × 26 — where does the decimal point go? (a) 0.962 (b) 0.0962 (c) 96.2 (d) 9.62
21. 21.2.9 × 2.6 — where does the decimal point go? (a) 0.0754 (b) 0.754 (c) 75.4 (d) 7.54
22. 22.0.39 × 29 — where does the decimal point go? (a) 0.1131 (b) 113.1 (c) 11.31 (d) 1.131
23. 23.8.2 × 3.3 — where does the decimal point go? (a) 27.06 (b) 270.6 (c) 2.706 (d) 0.2706
24. 24.8.3 × 0.6 — where does the decimal point go? (a) 49.8 (b) 4.98 (c) 0.498 (d) 0.0498
25. 25.4.2 × 23 — where does the decimal point go? (a) 96.6 (b) 9.66 (c) 966 (d) 0.966
26. 26.2.4 × 3.2 — where does the decimal point go? (a) 7.68 (b) 0.768 (c) 0.0768 (d) 76.8
27. 27.3.9 × 17 — where does the decimal point go? (a) 663 (b) 6.63 (c) 66.3 (d) 0.663
28. 28.5.2 × 4.1 — where does the decimal point go? (a) 2.132 (b) 0.2132 (c) 213.2 (d) 21.32
29. 29.4.7 × 18 — where does the decimal point go? (a) 84.6 (b) 8.46 (c) 846 (d) 0.846
30. 30.0.69 × 5 — where does the decimal point go? (a) 0.345 (b) 3.45 (c) 0.0345 (d) 34.5
31. 31.0.41 × 22 — where does the decimal point go? (a) 9.02 (b) 0.902 (c) 0.0902 (d) 90.2
32. 32.0.94 × 3.6 — where does the decimal point go? (a) 3.384 (b) 0.03384 (c) 0.3384 (d) 33.84
33. 33.5.9 × 4.6 — where does the decimal point go? (a) 2.714 (b) 0.2714 (c) 271.4 (d) 27.14
34. 34.0.68 × 0.4 — where does the decimal point go? (a) 2.72 (b) 0.272 (c) 0.00272 (d) 0.0272
35. 35.5.7 × 0.2 — where does the decimal point go? (a) 0.0114 (b) 1.14 (c) 0.114 (d) 11.4
36. 36.0.61 × 8 — where does the decimal point go? (a) 48.8 (b) 0.0488 (c) 0.488 (d) 4.88
37. 37.0.23 × 7 — where does the decimal point go? (a) 1.61 (b) 0.161 (c) 16.1 (d) 0.0161
38. 38.8.1 × 8 — where does the decimal point go? (a) 6.48 (b) 0.648 (c) 64.8 (d) 648
39. 39.0.93 × 3 — where does the decimal point go? (a) 27.9 (b) 0.279 (c) 0.0279 (d) 2.79
40. 40.0.28 × 29 — where does the decimal point go? (a) 0.812 (b) 0.0812 (c) 8.12 (d) 81.2

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