Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 670 · 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. 1.3.2 × 21 — where does the decimal point go? (a) 6.72 (b) 0.672 (c) 672 (d) 67.2
2. 2.0.92 × 7 — where does the decimal point go? (a) 6.44 (b) 0.644 (c) 64.4 (d) 0.0644
3. 3.0.77 × 6 — where does the decimal point go? (a) 46.2 (b) 0.0462 (c) 4.62 (d) 0.462
4. 4.9.5 × 9 — where does the decimal point go? (a) 85.5 (b) 855 (c) 8.55 (d) 0.855
5. 5.0.16 × 0.4 — where does the decimal point go? (a) 0.064 (b) 0.64 (c) 0.0064 (d) 0.00064
6. 6.0.53 × 19 — where does the decimal point go? (a) 10.07 (b) 1.007 (c) 0.1007 (d) 100.7
7. 7.7.2 × 0.8 — where does the decimal point go? (a) 0.0576 (b) 5.76 (c) 0.576 (d) 57.6
8. 8.2.7 × 8 — where does the decimal point go? (a) 21.6 (b) 2.16 (c) 0.216 (d) 216
9. 9.8.8 × 2.6 — where does the decimal point go? (a) 22.88 (b) 2.288 (c) 228.8 (d) 0.2288
10. 10.0.81 × 6 — where does the decimal point go? (a) 0.0486 (b) 48.6 (c) 4.86 (d) 0.486
11. 11.8.6 × 0.4 — where does the decimal point go? (a) 0.0344 (b) 3.44 (c) 0.344 (d) 34.4
12. 12.3.8 × 12 — where does the decimal point go? (a) 45.6 (b) 0.456 (c) 456 (d) 4.56
13. 13.9.1 × 43 — where does the decimal point go? (a) 3913 (b) 3.913 (c) 391.3 (d) 39.13
14. 14.8.3 × 29 — where does the decimal point go? (a) 2407 (b) 24.07 (c) 240.7 (d) 2.407
15. 15.9.5 × 3 — where does the decimal point go? (a) 2.85 (b) 285 (c) 0.285 (d) 28.5
16. 16.9.8 × 37 — where does the decimal point go? (a) 362.6 (b) 36.26 (c) 3.626 (d) 3626
17. 17.0.31 × 0.4 — where does the decimal point go? (a) 1.24 (b) 0.0124 (c) 0.00124 (d) 0.124
18. 18.0.92 × 24 — where does the decimal point go? (a) 2.208 (b) 22.08 (c) 0.2208 (d) 220.8
19. 19.0.99 × 2 — where does the decimal point go? (a) 19.8 (b) 0.198 (c) 1.98 (d) 0.0198
20. 20.7.4 × 44 — where does the decimal point go? (a) 325.6 (b) 32.56 (c) 3256 (d) 3.256
21. 21.4.1 × 23 — where does the decimal point go? (a) 9.43 (b) 0.943 (c) 94.3 (d) 943
22. 22.0.54 × 3 — where does the decimal point go? (a) 16.2 (b) 0.162 (c) 0.0162 (d) 1.62
23. 23.0.23 × 2.7 — where does the decimal point go? (a) 6.21 (b) 0.00621 (c) 0.0621 (d) 0.621
24. 24.0.43 × 0.6 — where does the decimal point go? (a) 0.0258 (b) 0.258 (c) 0.00258 (d) 2.58
25. 25.9.1 × 0.7 — where does the decimal point go? (a) 6.37 (b) 0.637 (c) 0.0637 (d) 63.7
26. 26.0.81 × 11 — where does the decimal point go? (a) 8.91 (b) 89.1 (c) 0.891 (d) 0.0891
27. 27.0.34 × 18 — where does the decimal point go? (a) 6.12 (b) 0.0612 (c) 0.612 (d) 61.2
28. 28.3.8 × 1.1 — where does the decimal point go? (a) 41.8 (b) 4.18 (c) 0.0418 (d) 0.418
29. 29.0.57 × 46 — where does the decimal point go? (a) 2.622 (b) 26.22 (c) 262.2 (d) 0.2622
30. 30.8.1 × 7 — where does the decimal point go? (a) 0.567 (b) 56.7 (c) 567 (d) 5.67
31. 31.0.78 × 2.1 — where does the decimal point go? (a) 0.1638 (b) 16.38 (c) 1.638 (d) 0.01638
32. 32.9.7 × 0.7 — where does the decimal point go? (a) 67.9 (b) 0.0679 (c) 6.79 (d) 0.679
33. 33.0.86 × 2.1 — where does the decimal point go? (a) 1.806 (b) 0.1806 (c) 18.06 (d) 0.01806
34. 34.7.6 × 3 — where does the decimal point go? (a) 22.8 (b) 228 (c) 2.28 (d) 0.228
35. 35.0.28 × 46 — where does the decimal point go? (a) 1.288 (b) 12.88 (c) 0.1288 (d) 128.8
36. 36.2.7 × 6 — where does the decimal point go? (a) 1.62 (b) 162 (c) 16.2 (d) 0.162
37. 37.2.8 × 6 — where does the decimal point go? (a) 168 (b) 16.8 (c) 0.168 (d) 1.68
38. 38.0.31 × 48 — where does the decimal point go? (a) 0.1488 (b) 1.488 (c) 14.88 (d) 148.8
39. 39.0.16 × 9 — where does the decimal point go? (a) 1.44 (b) 0.144 (c) 14.4 (d) 0.0144
40. 40.4.2 × 4.7 — where does the decimal point go? (a) 19.74 (b) 197.4 (c) 1.974 (d) 0.1974

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