Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 9 · 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. 1.0.87 × 7 — where does the decimal point go? (a) 6.09 (b) 0.0609 (c) 60.9 (d) 0.609
2. 2.6.9 × 3 — where does the decimal point go? (a) 2.07 (b) 0.207 (c) 20.7 (d) 207
3. 3.9.2 × 0.6 — where does the decimal point go? (a) 5.52 (b) 0.552 (c) 0.0552 (d) 55.2
4. 4.0.34 × 14 — where does the decimal point go? (a) 47.6 (b) 0.0476 (c) 4.76 (d) 0.476
5. 5.0.89 × 6 — where does the decimal point go? (a) 0.0534 (b) 5.34 (c) 0.534 (d) 53.4
6. 6.0.58 × 0.8 — where does the decimal point go? (a) 0.00464 (b) 0.0464 (c) 4.64 (d) 0.464
7. 7.0.81 × 23 — where does the decimal point go? (a) 18.63 (b) 0.1863 (c) 186.3 (d) 1.863
8. 8.6.8 × 0.8 — where does the decimal point go? (a) 0.544 (b) 0.0544 (c) 5.44 (d) 54.4
9. 9.0.13 × 4.2 — where does the decimal point go? (a) 0.0546 (b) 0.546 (c) 5.46 (d) 0.00546
10. 10.0.53 × 8 — where does the decimal point go? (a) 4.24 (b) 0.0424 (c) 42.4 (d) 0.424
11. 11.0.87 × 36 — where does the decimal point go? (a) 31.32 (b) 3.132 (c) 0.3132 (d) 313.2
12. 12.5.2 × 0.2 — where does the decimal point go? (a) 1.04 (b) 10.4 (c) 0.104 (d) 0.0104
13. 13.8.8 × 6 — where does the decimal point go? (a) 0.528 (b) 528 (c) 5.28 (d) 52.8
14. 14.0.71 × 0.5 — where does the decimal point go? (a) 0.00355 (b) 0.355 (c) 0.0355 (d) 3.55
15. 15.0.78 × 0.3 — where does the decimal point go? (a) 0.00234 (b) 0.0234 (c) 2.34 (d) 0.234
16. 16.0.23 × 13 — where does the decimal point go? (a) 0.299 (b) 2.99 (c) 29.9 (d) 0.0299
17. 17.0.51 × 34 — where does the decimal point go? (a) 173.4 (b) 1.734 (c) 17.34 (d) 0.1734
18. 18.5.1 × 1.2 — where does the decimal point go? (a) 0.0612 (b) 61.2 (c) 0.612 (d) 6.12
19. 19.0.93 × 4 — where does the decimal point go? (a) 3.72 (b) 0.372 (c) 37.2 (d) 0.0372
20. 20.7.4 × 0.2 — where does the decimal point go? (a) 0.148 (b) 1.48 (c) 14.8 (d) 0.0148
21. 21.0.24 × 0.7 — where does the decimal point go? (a) 0.168 (b) 0.00168 (c) 1.68 (d) 0.0168
22. 22.0.98 × 37 — where does the decimal point go? (a) 36.26 (b) 3.626 (c) 0.3626 (d) 362.6
23. 23.3.3 × 2 — where does the decimal point go? (a) 6.6 (b) 0.66 (c) 66 (d) 0.066
24. 24.9.4 × 2 — where does the decimal point go? (a) 18.8 (b) 0.188 (c) 1.88 (d) 188
25. 25.0.46 × 3.2 — where does the decimal point go? (a) 0.1472 (b) 1.472 (c) 14.72 (d) 0.01472
26. 26.5.3 × 3 — where does the decimal point go? (a) 0.159 (b) 1.59 (c) 159 (d) 15.9
27. 27.3.2 × 0.8 — where does the decimal point go? (a) 2.56 (b) 0.256 (c) 25.6 (d) 0.0256
28. 28.5.6 × 8 — where does the decimal point go? (a) 0.448 (b) 44.8 (c) 4.48 (d) 448
29. 29.0.63 × 49 — where does the decimal point go? (a) 30.87 (b) 0.3087 (c) 308.7 (d) 3.087
30. 30.8.3 × 0.2 — where does the decimal point go? (a) 1.66 (b) 16.6 (c) 0.166 (d) 0.0166
31. 31.9.5 × 3 — where does the decimal point go? (a) 2.85 (b) 0.285 (c) 285 (d) 28.5
32. 32.8.8 × 8 — where does the decimal point go? (a) 704 (b) 70.4 (c) 0.704 (d) 7.04
33. 33.0.41 × 0.2 — where does the decimal point go? (a) 0.82 (b) 0.082 (c) 0.00082 (d) 0.0082
34. 34.0.22 × 8 — where does the decimal point go? (a) 1.76 (b) 17.6 (c) 0.176 (d) 0.0176
35. 35.9.6 × 8 — where does the decimal point go? (a) 0.768 (b) 7.68 (c) 768 (d) 76.8
36. 36.0.33 × 0.3 — where does the decimal point go? (a) 0.99 (b) 0.0099 (c) 0.00099 (d) 0.099
37. 37.1.9 × 8 — where does the decimal point go? (a) 0.152 (b) 152 (c) 15.2 (d) 1.52
38. 38.5.9 × 21 — where does the decimal point go? (a) 1.239 (b) 1239 (c) 12.39 (d) 123.9
39. 39.0.38 × 0.7 — where does the decimal point go? (a) 2.66 (b) 0.266 (c) 0.0266 (d) 0.00266
40. 40.1.6 × 0.8 — where does the decimal point go? (a) 0.0128 (b) 1.28 (c) 12.8 (d) 0.128

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