Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 214 · 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. 1.1.4 × 34 — where does the decimal point go? (a) 4.76 (b) 476 (c) 0.476 (d) 47.6
2. 2.4.6 × 0.8 — where does the decimal point go? (a) 36.8 (b) 0.0368 (c) 3.68 (d) 0.368
3. 3.8.7 × 0.7 — where does the decimal point go? (a) 0.609 (b) 60.9 (c) 6.09 (d) 0.0609
4. 4.2.3 × 3 — where does the decimal point go? (a) 0.69 (b) 6.9 (c) 69 (d) 0.069
5. 5.4.2 × 8 — where does the decimal point go? (a) 33.6 (b) 0.336 (c) 3.36 (d) 336
6. 6.1.3 × 7 — where does the decimal point go? (a) 9.1 (b) 0.091 (c) 91 (d) 0.91
7. 7.0.49 × 0.3 — where does the decimal point go? (a) 0.0147 (b) 0.147 (c) 0.00147 (d) 1.47
8. 8.0.81 × 3 — where does the decimal point go? (a) 0.243 (b) 0.0243 (c) 24.3 (d) 2.43
9. 9.0.47 × 7 — where does the decimal point go? (a) 0.329 (b) 0.0329 (c) 32.9 (d) 3.29
10. 10.0.29 × 6 — where does the decimal point go? (a) 17.4 (b) 1.74 (c) 0.0174 (d) 0.174
11. 11.0.94 × 1.1 — where does the decimal point go? (a) 0.1034 (b) 0.01034 (c) 1.034 (d) 10.34
12. 12.5.7 × 3.9 — where does the decimal point go? (a) 0.2223 (b) 22.23 (c) 222.3 (d) 2.223
13. 13.0.48 × 1.6 — where does the decimal point go? (a) 7.68 (b) 0.768 (c) 0.0768 (d) 0.00768
14. 14.8.4 × 0.3 — where does the decimal point go? (a) 0.0252 (b) 0.252 (c) 25.2 (d) 2.52
15. 15.0.78 × 1.3 — where does the decimal point go? (a) 0.01014 (b) 1.014 (c) 10.14 (d) 0.1014
16. 16.4.5 × 4.9 — where does the decimal point go? (a) 220.5 (b) 22.05 (c) 2.205 (d) 0.2205
17. 17.0.22 × 7 — where does the decimal point go? (a) 0.0154 (b) 0.154 (c) 1.54 (d) 15.4
18. 18.0.23 × 5 — where does the decimal point go? (a) 0.0115 (b) 1.15 (c) 11.5 (d) 0.115
19. 19.1.4 × 4.8 — where does the decimal point go? (a) 6.72 (b) 0.0672 (c) 67.2 (d) 0.672
20. 20.0.31 × 28 — where does the decimal point go? (a) 8.68 (b) 0.868 (c) 86.8 (d) 0.0868
21. 21.4.9 × 14 — where does the decimal point go? (a) 68.6 (b) 6.86 (c) 686 (d) 0.686
22. 22.0.55 × 0.7 — where does the decimal point go? (a) 3.85 (b) 0.385 (c) 0.00385 (d) 0.0385
23. 23.9.6 × 2 — where does the decimal point go? (a) 0.192 (b) 1.92 (c) 19.2 (d) 192
24. 24.0.29 × 1.8 — where does the decimal point go? (a) 5.22 (b) 0.00522 (c) 0.0522 (d) 0.522
25. 25.0.34 × 0.7 — where does the decimal point go? (a) 2.38 (b) 0.238 (c) 0.0238 (d) 0.00238
26. 26.8.3 × 32 — where does the decimal point go? (a) 2.656 (b) 26.56 (c) 265.6 (d) 2656
27. 27.0.28 × 3.8 — where does the decimal point go? (a) 1.064 (b) 0.1064 (c) 0.01064 (d) 10.64
28. 28.0.54 × 2 — where does the decimal point go? (a) 10.8 (b) 0.0108 (c) 1.08 (d) 0.108
29. 29.0.14 × 4 — where does the decimal point go? (a) 0.56 (b) 5.6 (c) 0.056 (d) 0.0056
30. 30.0.44 × 3.9 — where does the decimal point go? (a) 0.01716 (b) 17.16 (c) 1.716 (d) 0.1716
31. 31.1.7 × 3.1 — where does the decimal point go? (a) 52.7 (b) 5.27 (c) 0.527 (d) 0.0527
32. 32.7.2 × 37 — where does the decimal point go? (a) 2.664 (b) 266.4 (c) 2664 (d) 26.64
33. 33.0.26 × 0.9 — where does the decimal point go? (a) 0.234 (b) 0.0234 (c) 0.00234 (d) 2.34
34. 34.3.1 × 7 — where does the decimal point go? (a) 0.217 (b) 21.7 (c) 217 (d) 2.17
35. 35.0.68 × 11 — where does the decimal point go? (a) 0.748 (b) 74.8 (c) 0.0748 (d) 7.48
36. 36.2.4 × 9 — where does the decimal point go? (a) 21.6 (b) 2.16 (c) 0.216 (d) 216
37. 37.0.62 × 0.4 — where does the decimal point go? (a) 0.248 (b) 0.0248 (c) 0.00248 (d) 2.48
38. 38.0.79 × 0.2 — where does the decimal point go? (a) 0.00158 (b) 0.0158 (c) 1.58 (d) 0.158
39. 39.0.37 × 6 — where does the decimal point go? (a) 0.222 (b) 2.22 (c) 22.2 (d) 0.0222
40. 40.6.7 × 44 — where does the decimal point go? (a) 2.948 (b) 2948 (c) 294.8 (d) 29.48

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