Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 94 · 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. 1.5.4 × 1.4 — where does the decimal point go? (a) 75.6 (b) 0.756 (c) 0.0756 (d) 7.56
2. 2.3.3 × 0.5 — where does the decimal point go? (a) 1.65 (b) 0.165 (c) 0.0165 (d) 16.5
3. 3.6.8 × 0.3 — where does the decimal point go? (a) 0.0204 (b) 20.4 (c) 2.04 (d) 0.204
4. 4.0.92 × 28 — where does the decimal point go? (a) 257.6 (b) 2.576 (c) 25.76 (d) 0.2576
5. 5.3.2 × 7 — where does the decimal point go? (a) 22.4 (b) 0.224 (c) 224 (d) 2.24
6. 6.0.21 × 31 — where does the decimal point go? (a) 65.1 (b) 0.0651 (c) 0.651 (d) 6.51
7. 7.0.77 × 0.6 — where does the decimal point go? (a) 0.00462 (b) 0.462 (c) 4.62 (d) 0.0462
8. 8.1.9 × 0.9 — where does the decimal point go? (a) 17.1 (b) 1.71 (c) 0.0171 (d) 0.171
9. 9.7.1 × 5 — where does the decimal point go? (a) 0.355 (b) 355 (c) 35.5 (d) 3.55
10. 10.8.7 × 3.8 — where does the decimal point go? (a) 3.306 (b) 0.3306 (c) 330.6 (d) 33.06
11. 11.9.9 × 7 — where does the decimal point go? (a) 69.3 (b) 6.93 (c) 0.693 (d) 693
12. 12.6.1 × 0.6 — where does the decimal point go? (a) 0.366 (b) 3.66 (c) 36.6 (d) 0.0366
13. 13.0.72 × 7 — where does the decimal point go? (a) 5.04 (b) 0.0504 (c) 50.4 (d) 0.504
14. 14.3.3 × 2.1 — where does the decimal point go? (a) 0.0693 (b) 6.93 (c) 0.693 (d) 69.3
15. 15.8.2 × 4.6 — where does the decimal point go? (a) 3.772 (b) 0.3772 (c) 377.2 (d) 37.72
16. 16.0.53 × 1.8 — where does the decimal point go? (a) 0.00954 (b) 0.954 (c) 9.54 (d) 0.0954
17. 17.3.1 × 2 — where does the decimal point go? (a) 0.062 (b) 6.2 (c) 62 (d) 0.62
18. 18.2.7 × 2 — where does the decimal point go? (a) 54 (b) 0.54 (c) 0.054 (d) 5.4
19. 19.4.7 × 2.5 — where does the decimal point go? (a) 1.175 (b) 117.5 (c) 11.75 (d) 0.1175
20. 20.0.17 × 0.9 — where does the decimal point go? (a) 0.153 (b) 0.0153 (c) 0.00153 (d) 1.53
21. 21.0.12 × 3 — where does the decimal point go? (a) 0.036 (b) 0.36 (c) 0.0036 (d) 3.6
22. 22.5.6 × 46 — where does the decimal point go? (a) 25.76 (b) 2.576 (c) 257.6 (d) 2576
23. 23.0.67 × 4.4 — where does the decimal point go? (a) 29.48 (b) 2.948 (c) 0.02948 (d) 0.2948
24. 24.0.32 × 2.9 — where does the decimal point go? (a) 0.928 (b) 0.00928 (c) 0.0928 (d) 9.28
25. 25.7.3 × 0.2 — where does the decimal point go? (a) 0.146 (b) 1.46 (c) 0.0146 (d) 14.6
26. 26.0.97 × 42 — where does the decimal point go? (a) 4.074 (b) 0.4074 (c) 407.4 (d) 40.74
27. 27.0.45 × 4.3 — where does the decimal point go? (a) 0.01935 (b) 19.35 (c) 0.1935 (d) 1.935
28. 28.0.95 × 3 — where does the decimal point go? (a) 28.5 (b) 0.285 (c) 2.85 (d) 0.0285
29. 29.1.9 × 0.5 — where does the decimal point go? (a) 0.095 (b) 0.0095 (c) 0.95 (d) 9.5
30. 30.0.99 × 3 — where does the decimal point go? (a) 0.297 (b) 0.0297 (c) 29.7 (d) 2.97
31. 31.0.18 × 8 — where does the decimal point go? (a) 14.4 (b) 1.44 (c) 0.144 (d) 0.0144
32. 32.4.4 × 0.7 — where does the decimal point go? (a) 0.308 (b) 0.0308 (c) 30.8 (d) 3.08
33. 33.7.6 × 1.1 — where does the decimal point go? (a) 8.36 (b) 83.6 (c) 0.836 (d) 0.0836
34. 34.0.31 × 1.6 — where does the decimal point go? (a) 4.96 (b) 0.0496 (c) 0.496 (d) 0.00496
35. 35.0.52 × 31 — where does the decimal point go? (a) 0.1612 (b) 161.2 (c) 1.612 (d) 16.12
36. 36.6.5 × 2.7 — where does the decimal point go? (a) 0.1755 (b) 17.55 (c) 1.755 (d) 175.5
37. 37.2.5 × 49 — where does the decimal point go? (a) 1.225 (b) 1225 (c) 12.25 (d) 122.5
38. 38.0.59 × 0.2 — where does the decimal point go? (a) 0.0118 (b) 0.00118 (c) 1.18 (d) 0.118
39. 39.3.2 × 9 — where does the decimal point go? (a) 28.8 (b) 0.288 (c) 288 (d) 2.88
40. 40.0.14 × 0.9 — where does the decimal point go? (a) 1.26 (b) 0.00126 (c) 0.126 (d) 0.0126

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