Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 779 · 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. 1.5.2 × 11 — where does the decimal point go? (a) 572 (b) 0.572 (c) 5.72 (d) 57.2
2. 2.0.86 × 0.3 — where does the decimal point go? (a) 2.58 (b) 0.0258 (c) 0.258 (d) 0.00258
3. 3.0.16 × 2.4 — where does the decimal point go? (a) 3.84 (b) 0.0384 (c) 0.384 (d) 0.00384
4. 4.0.63 × 0.7 — where does the decimal point go? (a) 4.41 (b) 0.00441 (c) 0.0441 (d) 0.441
5. 5.3.3 × 1.8 — where does the decimal point go? (a) 5.94 (b) 0.594 (c) 0.0594 (d) 59.4
6. 6.0.49 × 0.4 — where does the decimal point go? (a) 0.0196 (b) 1.96 (c) 0.196 (d) 0.00196
7. 7.0.27 × 2 — where does the decimal point go? (a) 0.0054 (b) 0.054 (c) 0.54 (d) 5.4
8. 8.7.7 × 4.2 — where does the decimal point go? (a) 3.234 (b) 323.4 (c) 0.3234 (d) 32.34
9. 9.7.7 × 8 — where does the decimal point go? (a) 61.6 (b) 6.16 (c) 616 (d) 0.616
10. 10.0.35 × 3 — where does the decimal point go? (a) 1.05 (b) 10.5 (c) 0.0105 (d) 0.105
11. 11.3.9 × 4 — where does the decimal point go? (a) 0.156 (b) 1.56 (c) 156 (d) 15.6
12. 12.0.58 × 12 — where does the decimal point go? (a) 6.96 (b) 0.696 (c) 0.0696 (d) 69.6
13. 13.0.89 × 0.9 — where does the decimal point go? (a) 0.00801 (b) 8.01 (c) 0.801 (d) 0.0801
14. 14.0.69 × 2 — where does the decimal point go? (a) 0.138 (b) 1.38 (c) 0.0138 (d) 13.8
15. 15.0.33 × 0.2 — where does the decimal point go? (a) 0.66 (b) 0.0066 (c) 0.066 (d) 0.00066
16. 16.0.58 × 2.3 — where does the decimal point go? (a) 1.334 (b) 13.34 (c) 0.1334 (d) 0.01334
17. 17.0.58 × 1.3 — where does the decimal point go? (a) 0.0754 (b) 0.00754 (c) 7.54 (d) 0.754
18. 18.0.87 × 0.6 — where does the decimal point go? (a) 0.0522 (b) 0.00522 (c) 0.522 (d) 5.22
19. 19.0.29 × 5 — where does the decimal point go? (a) 14.5 (b) 0.145 (c) 0.0145 (d) 1.45
20. 20.2.2 × 0.4 — where does the decimal point go? (a) 0.088 (b) 0.88 (c) 0.0088 (d) 8.8
21. 21.0.59 × 0.7 — where does the decimal point go? (a) 0.00413 (b) 0.0413 (c) 0.413 (d) 4.13
22. 22.1.7 × 0.9 — where does the decimal point go? (a) 0.0153 (b) 1.53 (c) 0.153 (d) 15.3
23. 23.2.9 × 0.7 — where does the decimal point go? (a) 0.0203 (b) 2.03 (c) 20.3 (d) 0.203
24. 24.5.9 × 0.8 — where does the decimal point go? (a) 4.72 (b) 47.2 (c) 0.472 (d) 0.0472
25. 25.1.6 × 9 — where does the decimal point go? (a) 0.144 (b) 14.4 (c) 144 (d) 1.44
26. 26.3.9 × 35 — where does the decimal point go? (a) 13.65 (b) 1365 (c) 1.365 (d) 136.5
27. 27.0.98 × 0.9 — where does the decimal point go? (a) 0.0882 (b) 8.82 (c) 0.882 (d) 0.00882
28. 28.0.91 × 9 — where does the decimal point go? (a) 0.819 (b) 0.0819 (c) 81.9 (d) 8.19
29. 29.0.37 × 3 — where does the decimal point go? (a) 1.11 (b) 11.1 (c) 0.0111 (d) 0.111
30. 30.0.74 × 2.3 — where does the decimal point go? (a) 0.1702 (b) 0.01702 (c) 17.02 (d) 1.702
31. 31.1.3 × 11 — where does the decimal point go? (a) 14.3 (b) 143 (c) 1.43 (d) 0.143
32. 32.0.42 × 8 — where does the decimal point go? (a) 0.336 (b) 33.6 (c) 0.0336 (d) 3.36
33. 33.9.7 × 0.3 — where does the decimal point go? (a) 0.0291 (b) 0.291 (c) 2.91 (d) 29.1
34. 34.0.73 × 1.1 — where does the decimal point go? (a) 0.0803 (b) 8.03 (c) 0.803 (d) 0.00803
35. 35.0.88 × 2 — where does the decimal point go? (a) 17.6 (b) 0.0176 (c) 0.176 (d) 1.76
36. 36.4.3 × 9 — where does the decimal point go? (a) 387 (b) 38.7 (c) 0.387 (d) 3.87
37. 37.7.2 × 36 — where does the decimal point go? (a) 259.2 (b) 2592 (c) 2.592 (d) 25.92
38. 38.6.3 × 35 — where does the decimal point go? (a) 22.05 (b) 2205 (c) 220.5 (d) 2.205
39. 39.4.4 × 4.4 — where does the decimal point go? (a) 0.1936 (b) 19.36 (c) 193.6 (d) 1.936
40. 40.7.8 × 0.6 — where does the decimal point go? (a) 0.0468 (b) 46.8 (c) 4.68 (d) 0.468

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