Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 928 · 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. 1.0.36 × 6 — where does the decimal point go? (a) 21.6 (b) 2.16 (c) 0.0216 (d) 0.216
2. 2.6.1 × 8 — where does the decimal point go? (a) 4.88 (b) 0.488 (c) 488 (d) 48.8
3. 3.6.9 × 0.9 — where does the decimal point go? (a) 0.0621 (b) 62.1 (c) 0.621 (d) 6.21
4. 4.7.7 × 45 — where does the decimal point go? (a) 3465 (b) 34.65 (c) 346.5 (d) 3.465
5. 5.9.9 × 4.5 — where does the decimal point go? (a) 0.4455 (b) 445.5 (c) 44.55 (d) 4.455
6. 6.7.5 × 37 — where does the decimal point go? (a) 2775 (b) 27.75 (c) 2.775 (d) 277.5
7. 7.3.4 × 18 — where does the decimal point go? (a) 6.12 (b) 612 (c) 61.2 (d) 0.612
8. 8.4.9 × 35 — where does the decimal point go? (a) 171.5 (b) 1715 (c) 17.15 (d) 1.715
9. 9.0.98 × 29 — where does the decimal point go? (a) 0.2842 (b) 284.2 (c) 2.842 (d) 28.42
10. 10.0.86 × 0.9 — where does the decimal point go? (a) 0.00774 (b) 0.774 (c) 7.74 (d) 0.0774
11. 11.0.17 × 47 — where does the decimal point go? (a) 0.799 (b) 79.9 (c) 0.0799 (d) 7.99
12. 12.0.98 × 0.6 — where does the decimal point go? (a) 0.00588 (b) 5.88 (c) 0.588 (d) 0.0588
13. 13.0.86 × 0.3 — where does the decimal point go? (a) 0.258 (b) 0.0258 (c) 2.58 (d) 0.00258
14. 14.0.28 × 29 — where does the decimal point go? (a) 0.812 (b) 81.2 (c) 8.12 (d) 0.0812
15. 15.4.7 × 1.6 — where does the decimal point go? (a) 75.2 (b) 0.752 (c) 7.52 (d) 0.0752
16. 16.7.2 × 37 — where does the decimal point go? (a) 2.664 (b) 26.64 (c) 2664 (d) 266.4
17. 17.0.12 × 0.3 — where does the decimal point go? (a) 0.0036 (b) 0.36 (c) 0.00036 (d) 0.036
18. 18.4.7 × 1.4 — where does the decimal point go? (a) 6.58 (b) 0.0658 (c) 65.8 (d) 0.658
19. 19.0.24 × 8 — where does the decimal point go? (a) 1.92 (b) 0.192 (c) 0.0192 (d) 19.2
20. 20.0.23 × 5 — where does the decimal point go? (a) 0.0115 (b) 11.5 (c) 0.115 (d) 1.15
21. 21.8.4 × 4.9 — where does the decimal point go? (a) 4.116 (b) 411.6 (c) 0.4116 (d) 41.16
22. 22.8.1 × 2 — where does the decimal point go? (a) 0.162 (b) 1.62 (c) 16.2 (d) 162
23. 23.0.92 × 1.4 — where does the decimal point go? (a) 1.288 (b) 0.1288 (c) 0.01288 (d) 12.88
24. 24.2.9 × 1.9 — where does the decimal point go? (a) 5.51 (b) 0.0551 (c) 0.551 (d) 55.1
25. 25.0.44 × 0.9 — where does the decimal point go? (a) 0.0396 (b) 3.96 (c) 0.396 (d) 0.00396
26. 26.0.28 × 19 — where does the decimal point go? (a) 0.0532 (b) 0.532 (c) 53.2 (d) 5.32
27. 27.8.1 × 12 — where does the decimal point go? (a) 9.72 (b) 972 (c) 0.972 (d) 97.2
28. 28.7.2 × 28 — where does the decimal point go? (a) 20.16 (b) 201.6 (c) 2016 (d) 2.016
29. 29.3.3 × 2.3 — where does the decimal point go? (a) 7.59 (b) 0.0759 (c) 75.9 (d) 0.759
30. 30.0.29 × 7 — where does the decimal point go? (a) 2.03 (b) 0.0203 (c) 20.3 (d) 0.203
31. 31.2.3 × 1.1 — where does the decimal point go? (a) 25.3 (b) 2.53 (c) 0.0253 (d) 0.253
32. 32.8.2 × 1.2 — where does the decimal point go? (a) 0.0984 (b) 9.84 (c) 0.984 (d) 98.4
33. 33.8.8 × 0.9 — where does the decimal point go? (a) 7.92 (b) 0.792 (c) 0.0792 (d) 79.2
34. 34.0.13 × 2.3 — where does the decimal point go? (a) 0.299 (b) 0.00299 (c) 2.99 (d) 0.0299
35. 35.0.69 × 4 — where does the decimal point go? (a) 0.0276 (b) 2.76 (c) 0.276 (d) 27.6
36. 36.8.1 × 2.1 — where does the decimal point go? (a) 170.1 (b) 17.01 (c) 1.701 (d) 0.1701
37. 37.1.2 × 0.2 — where does the decimal point go? (a) 2.4 (b) 0.0024 (c) 0.024 (d) 0.24
38. 38.0.29 × 0.3 — where does the decimal point go? (a) 0.087 (b) 0.87 (c) 0.0087 (d) 0.00087
39. 39.0.85 × 1.9 — where does the decimal point go? (a) 0.1615 (b) 0.01615 (c) 1.615 (d) 16.15
40. 40.0.41 × 2.9 — where does the decimal point go? (a) 11.89 (b) 0.1189 (c) 1.189 (d) 0.01189

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