Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 752 · 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. 1.0.74 × 8 — where does the decimal point go? (a) 0.0592 (b) 5.92 (c) 59.2 (d) 0.592
2. 2.6.3 × 9 — where does the decimal point go? (a) 56.7 (b) 5.67 (c) 0.567 (d) 567
3. 3.0.52 × 3.8 — where does the decimal point go? (a) 0.01976 (b) 19.76 (c) 0.1976 (d) 1.976
4. 4.2.5 × 25 — where does the decimal point go? (a) 6.25 (b) 62.5 (c) 0.625 (d) 625
5. 5.2.9 × 2.8 — where does the decimal point go? (a) 8.12 (b) 81.2 (c) 0.0812 (d) 0.812
6. 6.0.62 × 0.6 — where does the decimal point go? (a) 0.372 (b) 0.0372 (c) 3.72 (d) 0.00372
7. 7.0.64 × 0.2 — where does the decimal point go? (a) 0.0128 (b) 0.128 (c) 0.00128 (d) 1.28
8. 8.5.2 × 3 — where does the decimal point go? (a) 15.6 (b) 156 (c) 0.156 (d) 1.56
9. 9.0.69 × 0.3 — where does the decimal point go? (a) 0.0207 (b) 0.00207 (c) 2.07 (d) 0.207
10. 10.7.4 × 2 — where does the decimal point go? (a) 14.8 (b) 1.48 (c) 0.148 (d) 148
11. 11.0.21 × 3.8 — where does the decimal point go? (a) 7.98 (b) 0.0798 (c) 0.00798 (d) 0.798
12. 12.7.6 × 3.7 — where does the decimal point go? (a) 28.12 (b) 2.812 (c) 281.2 (d) 0.2812
13. 13.3.7 × 47 — where does the decimal point go? (a) 17.39 (b) 173.9 (c) 1739 (d) 1.739
14. 14.0.66 × 0.6 — where does the decimal point go? (a) 0.0396 (b) 3.96 (c) 0.00396 (d) 0.396
15. 15.8.4 × 7 — where does the decimal point go? (a) 58.8 (b) 5.88 (c) 588 (d) 0.588
16. 16.7.6 × 1.4 — where does the decimal point go? (a) 10.64 (b) 1.064 (c) 106.4 (d) 0.1064
17. 17.9.5 × 0.7 — where does the decimal point go? (a) 0.0665 (b) 66.5 (c) 6.65 (d) 0.665
18. 18.0.63 × 9 — where does the decimal point go? (a) 0.567 (b) 5.67 (c) 56.7 (d) 0.0567
19. 19.6.9 × 25 — where does the decimal point go? (a) 172.5 (b) 1.725 (c) 1725 (d) 17.25
20. 20.4.8 × 0.7 — where does the decimal point go? (a) 3.36 (b) 0.0336 (c) 0.336 (d) 33.6
21. 21.9.6 × 0.8 — where does the decimal point go? (a) 7.68 (b) 0.768 (c) 0.0768 (d) 76.8
22. 22.0.15 × 0.3 — where does the decimal point go? (a) 0.00045 (b) 0.45 (c) 0.045 (d) 0.0045
23. 23.0.98 × 44 — where does the decimal point go? (a) 43.12 (b) 431.2 (c) 4.312 (d) 0.4312
24. 24.0.86 × 0.8 — where does the decimal point go? (a) 0.00688 (b) 0.0688 (c) 6.88 (d) 0.688
25. 25.6.6 × 0.9 — where does the decimal point go? (a) 0.0594 (b) 0.594 (c) 5.94 (d) 59.4
26. 26.4.9 × 1.6 — where does the decimal point go? (a) 0.784 (b) 7.84 (c) 78.4 (d) 0.0784
27. 27.2.2 × 22 — where does the decimal point go? (a) 48.4 (b) 4.84 (c) 0.484 (d) 484
28. 28.0.35 × 0.7 — where does the decimal point go? (a) 0.0245 (b) 0.245 (c) 0.00245 (d) 2.45
29. 29.0.64 × 0.9 — where does the decimal point go? (a) 0.0576 (b) 0.00576 (c) 0.576 (d) 5.76
30. 30.2.4 × 0.3 — where does the decimal point go? (a) 0.72 (b) 0.0072 (c) 0.072 (d) 7.2
31. 31.0.54 × 22 — where does the decimal point go? (a) 11.88 (b) 1.188 (c) 0.1188 (d) 118.8
32. 32.0.24 × 9 — where does the decimal point go? (a) 0.216 (b) 21.6 (c) 2.16 (d) 0.0216
33. 33.4.3 × 4 — where does the decimal point go? (a) 17.2 (b) 172 (c) 1.72 (d) 0.172
34. 34.1.6 × 0.4 — where does the decimal point go? (a) 0.064 (b) 0.64 (c) 6.4 (d) 0.0064
35. 35.2.3 × 0.5 — where does the decimal point go? (a) 11.5 (b) 1.15 (c) 0.115 (d) 0.0115
36. 36.8.1 × 5 — where does the decimal point go? (a) 40.5 (b) 4.05 (c) 0.405 (d) 405
37. 37.0.26 × 8 — where does the decimal point go? (a) 0.208 (b) 2.08 (c) 20.8 (d) 0.0208
38. 38.0.78 × 3 — where does the decimal point go? (a) 23.4 (b) 2.34 (c) 0.234 (d) 0.0234
39. 39.3.3 × 3 — where does the decimal point go? (a) 9.9 (b) 99 (c) 0.099 (d) 0.99
40. 40.0.93 × 43 — where does the decimal point go? (a) 0.3999 (b) 3.999 (c) 399.9 (d) 39.99

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