Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 872 · 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) 10.4 (b) 0.0104 (c) 1.04 (d) 0.104
2. 2.5.9 × 1.6 — where does the decimal point go? (a) 94.4 (b) 0.944 (c) 0.0944 (d) 9.44
3. 3.9.5 × 3 — where does the decimal point go? (a) 2.85 (b) 285 (c) 28.5 (d) 0.285
4. 4.8.7 × 6 — where does the decimal point go? (a) 52.2 (b) 522 (c) 0.522 (d) 5.22
5. 5.0.37 × 11 — where does the decimal point go? (a) 0.407 (b) 4.07 (c) 0.0407 (d) 40.7
6. 6.2.8 × 9 — where does the decimal point go? (a) 2.52 (b) 0.252 (c) 25.2 (d) 252
7. 7.1.8 × 21 — where does the decimal point go? (a) 3.78 (b) 37.8 (c) 0.378 (d) 378
8. 8.9.3 × 0.5 — where does the decimal point go? (a) 46.5 (b) 4.65 (c) 0.0465 (d) 0.465
9. 9.8.3 × 0.4 — where does the decimal point go? (a) 3.32 (b) 0.332 (c) 0.0332 (d) 33.2
10. 10.9.9 × 14 — where does the decimal point go? (a) 1386 (b) 138.6 (c) 13.86 (d) 1.386
11. 11.0.56 × 8 — where does the decimal point go? (a) 0.448 (b) 0.0448 (c) 4.48 (d) 44.8
12. 12.0.14 × 2 — where does the decimal point go? (a) 0.028 (b) 2.8 (c) 0.0028 (d) 0.28
13. 13.0.96 × 0.4 — where does the decimal point go? (a) 0.384 (b) 0.00384 (c) 0.0384 (d) 3.84
14. 14.3.2 × 36 — where does the decimal point go? (a) 115.2 (b) 1.152 (c) 11.52 (d) 1152
15. 15.7.8 × 2.9 — where does the decimal point go? (a) 22.62 (b) 226.2 (c) 2.262 (d) 0.2262
16. 16.0.44 × 6 — where does the decimal point go? (a) 0.264 (b) 0.0264 (c) 2.64 (d) 26.4
17. 17.9.4 × 2.4 — where does the decimal point go? (a) 0.2256 (b) 225.6 (c) 22.56 (d) 2.256
18. 18.6.5 × 3 — where does the decimal point go? (a) 19.5 (b) 195 (c) 0.195 (d) 1.95
19. 19.2.3 × 0.9 — where does the decimal point go? (a) 2.07 (b) 0.0207 (c) 0.207 (d) 20.7
20. 20.6.2 × 22 — where does the decimal point go? (a) 136.4 (b) 1.364 (c) 1364 (d) 13.64
21. 21.4.1 × 3.7 — where does the decimal point go? (a) 1.517 (b) 0.1517 (c) 15.17 (d) 151.7
22. 22.3.9 × 29 — where does the decimal point go? (a) 11.31 (b) 1.131 (c) 1131 (d) 113.1
23. 23.6.2 × 0.9 — where does the decimal point go? (a) 0.558 (b) 55.8 (c) 0.0558 (d) 5.58
24. 24.2.7 × 1.9 — where does the decimal point go? (a) 0.0513 (b) 51.3 (c) 0.513 (d) 5.13
25. 25.0.24 × 4.2 — where does the decimal point go? (a) 0.01008 (b) 0.1008 (c) 10.08 (d) 1.008
26. 26.0.23 × 34 — where does the decimal point go? (a) 0.782 (b) 78.2 (c) 0.0782 (d) 7.82
27. 27.6.2 × 7 — where does the decimal point go? (a) 43.4 (b) 4.34 (c) 434 (d) 0.434
28. 28.6.3 × 21 — where does the decimal point go? (a) 132.3 (b) 1323 (c) 1.323 (d) 13.23
29. 29.4.8 × 0.3 — where does the decimal point go? (a) 0.0144 (b) 0.144 (c) 14.4 (d) 1.44
30. 30.0.67 × 2 — where does the decimal point go? (a) 0.0134 (b) 13.4 (c) 1.34 (d) 0.134
31. 31.1.4 × 1.9 — where does the decimal point go? (a) 2.66 (b) 0.266 (c) 0.0266 (d) 26.6
32. 32.8.9 × 0.3 — where does the decimal point go? (a) 26.7 (b) 0.267 (c) 0.0267 (d) 2.67
33. 33.2.6 × 2.2 — where does the decimal point go? (a) 0.572 (b) 5.72 (c) 57.2 (d) 0.0572
34. 34.0.75 × 7 — where does the decimal point go? (a) 0.0525 (b) 5.25 (c) 52.5 (d) 0.525
35. 35.4.2 × 14 — where does the decimal point go? (a) 0.588 (b) 588 (c) 5.88 (d) 58.8
36. 36.7.6 × 1.2 — where does the decimal point go? (a) 0.912 (b) 9.12 (c) 91.2 (d) 0.0912
37. 37.0.32 × 2 — where does the decimal point go? (a) 6.4 (b) 0.64 (c) 0.064 (d) 0.0064
38. 38.8.2 × 2 — where does the decimal point go? (a) 0.164 (b) 1.64 (c) 164 (d) 16.4
39. 39.0.36 × 4.9 — where does the decimal point go? (a) 1.764 (b) 0.1764 (c) 0.01764 (d) 17.64
40. 40.0.14 × 9 — where does the decimal point go? (a) 1.26 (b) 0.126 (c) 0.0126 (d) 12.6

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