Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 68 · 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. 1.0.21 × 2 — where does the decimal point go? (a) 0.42 (b) 0.042 (c) 4.2 (d) 0.0042
2. 2.1.4 × 9 — where does the decimal point go? (a) 0.126 (b) 1.26 (c) 12.6 (d) 126
3. 3.5.3 × 27 — where does the decimal point go? (a) 1431 (b) 143.1 (c) 1.431 (d) 14.31
4. 4.2.9 × 8 — where does the decimal point go? (a) 0.232 (b) 23.2 (c) 2.32 (d) 232
5. 5.0.38 × 3.9 — where does the decimal point go? (a) 0.1482 (b) 14.82 (c) 0.01482 (d) 1.482
6. 6.8.4 × 6 — where does the decimal point go? (a) 50.4 (b) 504 (c) 5.04 (d) 0.504
7. 7.3.5 × 0.3 — where does the decimal point go? (a) 1.05 (b) 10.5 (c) 0.0105 (d) 0.105
8. 8.0.76 × 4 — where does the decimal point go? (a) 0.0304 (b) 0.304 (c) 30.4 (d) 3.04
9. 9.2.7 × 0.6 — where does the decimal point go? (a) 0.0162 (b) 1.62 (c) 16.2 (d) 0.162
10. 10.0.36 × 23 — where does the decimal point go? (a) 82.8 (b) 0.828 (c) 0.0828 (d) 8.28
11. 11.0.49 × 2.7 — where does the decimal point go? (a) 0.1323 (b) 13.23 (c) 1.323 (d) 0.01323
12. 12.0.49 × 3.7 — where does the decimal point go? (a) 18.13 (b) 0.1813 (c) 0.01813 (d) 1.813
13. 13.4.3 × 9 — where does the decimal point go? (a) 38.7 (b) 3.87 (c) 0.387 (d) 387
14. 14.0.74 × 1.3 — where does the decimal point go? (a) 0.0962 (b) 0.962 (c) 9.62 (d) 0.00962
15. 15.0.24 × 4 — where does the decimal point go? (a) 0.096 (b) 0.96 (c) 0.0096 (d) 9.6
16. 16.4.9 × 9 — where does the decimal point go? (a) 44.1 (b) 441 (c) 0.441 (d) 4.41
17. 17.0.16 × 34 — where does the decimal point go? (a) 0.0544 (b) 5.44 (c) 54.4 (d) 0.544
18. 18.1.4 × 0.3 — where does the decimal point go? (a) 4.2 (b) 0.42 (c) 0.042 (d) 0.0042
19. 19.0.35 × 13 — where does the decimal point go? (a) 4.55 (b) 0.0455 (c) 0.455 (d) 45.5
20. 20.7.4 × 0.9 — where does the decimal point go? (a) 6.66 (b) 0.666 (c) 0.0666 (d) 66.6
21. 21.9.5 × 7 — where does the decimal point go? (a) 6.65 (b) 0.665 (c) 665 (d) 66.5
22. 22.7.3 × 4.1 — where does the decimal point go? (a) 2.993 (b) 299.3 (c) 29.93 (d) 0.2993
23. 23.3.2 × 0.6 — where does the decimal point go? (a) 1.92 (b) 0.0192 (c) 19.2 (d) 0.192
24. 24.0.67 × 0.6 — where does the decimal point go? (a) 0.00402 (b) 0.402 (c) 0.0402 (d) 4.02
25. 25.1.6 × 37 — where does the decimal point go? (a) 0.592 (b) 5.92 (c) 592 (d) 59.2
26. 26.0.91 × 26 — where does the decimal point go? (a) 0.2366 (b) 236.6 (c) 2.366 (d) 23.66
27. 27.0.54 × 49 — where does the decimal point go? (a) 26.46 (b) 2.646 (c) 0.2646 (d) 264.6
28. 28.0.89 × 0.7 — where does the decimal point go? (a) 0.0623 (b) 0.623 (c) 0.00623 (d) 6.23
29. 29.3.1 × 16 — where does the decimal point go? (a) 496 (b) 49.6 (c) 4.96 (d) 0.496
30. 30.0.26 × 2 — where does the decimal point go? (a) 0.0052 (b) 0.052 (c) 0.52 (d) 5.2
31. 31.0.92 × 4.3 — where does the decimal point go? (a) 3.956 (b) 0.3956 (c) 0.03956 (d) 39.56
32. 32.8.6 × 27 — where does the decimal point go? (a) 2322 (b) 232.2 (c) 23.22 (d) 2.322
33. 33.6.7 × 29 — where does the decimal point go? (a) 19.43 (b) 1.943 (c) 194.3 (d) 1943
34. 34.2.7 × 0.7 — where does the decimal point go? (a) 18.9 (b) 0.0189 (c) 0.189 (d) 1.89
35. 35.0.87 × 0.9 — where does the decimal point go? (a) 0.783 (b) 0.0783 (c) 0.00783 (d) 7.83
36. 36.9.5 × 0.5 — where does the decimal point go? (a) 0.0475 (b) 0.475 (c) 47.5 (d) 4.75
37. 37.0.33 × 7 — where does the decimal point go? (a) 2.31 (b) 0.231 (c) 0.0231 (d) 23.1
38. 38.0.35 × 4.9 — where does the decimal point go? (a) 0.1715 (b) 1.715 (c) 0.01715 (d) 17.15
39. 39.0.36 × 2 — where does the decimal point go? (a) 0.72 (b) 0.0072 (c) 0.072 (d) 7.2
40. 40.0.93 × 3 — where does the decimal point go? (a) 0.279 (b) 2.79 (c) 0.0279 (d) 27.9

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