Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 926 · 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. 1.8.9 × 3 — where does the decimal point go? (a) 2.67 (b) 26.7 (c) 0.267 (d) 267
2. 2.0.52 × 41 — where does the decimal point go? (a) 21.32 (b) 2.132 (c) 0.2132 (d) 213.2
3. 3.9.4 × 0.7 — where does the decimal point go? (a) 0.0658 (b) 6.58 (c) 0.658 (d) 65.8
4. 4.1.4 × 0.4 — where does the decimal point go? (a) 0.0056 (b) 0.056 (c) 0.56 (d) 5.6
5. 5.1.2 × 36 — where does the decimal point go? (a) 0.432 (b) 43.2 (c) 4.32 (d) 432
6. 6.2.6 × 0.3 — where does the decimal point go? (a) 0.078 (b) 0.78 (c) 7.8 (d) 0.0078
7. 7.0.51 × 13 — where does the decimal point go? (a) 66.3 (b) 0.663 (c) 0.0663 (d) 6.63
8. 8.3.3 × 7 — where does the decimal point go? (a) 23.1 (b) 0.231 (c) 2.31 (d) 231
9. 9.0.37 × 3 — where does the decimal point go? (a) 0.111 (b) 11.1 (c) 0.0111 (d) 1.11
10. 10.8.2 × 37 — where does the decimal point go? (a) 30.34 (b) 303.4 (c) 3.034 (d) 3034
11. 11.0.76 × 0.2 — where does the decimal point go? (a) 0.152 (b) 1.52 (c) 0.00152 (d) 0.0152
12. 12.0.29 × 0.4 — where does the decimal point go? (a) 0.116 (b) 1.16 (c) 0.0116 (d) 0.00116
13. 13.9.6 × 0.4 — where does the decimal point go? (a) 38.4 (b) 0.0384 (c) 3.84 (d) 0.384
14. 14.0.79 × 0.4 — where does the decimal point go? (a) 0.00316 (b) 0.316 (c) 3.16 (d) 0.0316
15. 15.0.68 × 0.3 — where does the decimal point go? (a) 0.204 (b) 0.0204 (c) 0.00204 (d) 2.04
16. 16.0.56 × 2 — where does the decimal point go? (a) 11.2 (b) 0.0112 (c) 1.12 (d) 0.112
17. 17.3.5 × 3.5 — where does the decimal point go? (a) 12.25 (b) 0.1225 (c) 1.225 (d) 122.5
18. 18.6.8 × 28 — where does the decimal point go? (a) 19.04 (b) 1904 (c) 1.904 (d) 190.4
19. 19.3.5 × 27 — where does the decimal point go? (a) 9.45 (b) 945 (c) 0.945 (d) 94.5
20. 20.0.76 × 0.6 — where does the decimal point go? (a) 0.00456 (b) 0.456 (c) 4.56 (d) 0.0456
21. 21.0.32 × 17 — where does the decimal point go? (a) 0.0544 (b) 54.4 (c) 0.544 (d) 5.44
22. 22.6.9 × 31 — where does the decimal point go? (a) 213.9 (b) 21.39 (c) 2.139 (d) 2139
23. 23.0.27 × 0.4 — where does the decimal point go? (a) 1.08 (b) 0.0108 (c) 0.108 (d) 0.00108
24. 24.6.3 × 0.5 — where does the decimal point go? (a) 0.0315 (b) 31.5 (c) 3.15 (d) 0.315
25. 25.7.8 × 41 — where does the decimal point go? (a) 31.98 (b) 3.198 (c) 3198 (d) 319.8
26. 26.0.28 × 23 — where does the decimal point go? (a) 0.644 (b) 0.0644 (c) 64.4 (d) 6.44
27. 27.0.27 × 3.9 — where does the decimal point go? (a) 0.1053 (b) 1.053 (c) 10.53 (d) 0.01053
28. 28.0.93 × 1.3 — where does the decimal point go? (a) 1.209 (b) 0.01209 (c) 12.09 (d) 0.1209
29. 29.8.3 × 0.6 — where does the decimal point go? (a) 0.498 (b) 4.98 (c) 0.0498 (d) 49.8
30. 30.2.8 × 38 — where does the decimal point go? (a) 106.4 (b) 1.064 (c) 10.64 (d) 1064
31. 31.0.36 × 0.7 — where does the decimal point go? (a) 0.0252 (b) 0.252 (c) 0.00252 (d) 2.52
32. 32.0.83 × 0.4 — where does the decimal point go? (a) 0.00332 (b) 3.32 (c) 0.0332 (d) 0.332
33. 33.0.44 × 0.6 — where does the decimal point go? (a) 0.0264 (b) 2.64 (c) 0.00264 (d) 0.264
34. 34.8.7 × 0.8 — where does the decimal point go? (a) 6.96 (b) 0.696 (c) 0.0696 (d) 69.6
35. 35.0.16 × 2.7 — where does the decimal point go? (a) 0.00432 (b) 0.0432 (c) 4.32 (d) 0.432
36. 36.0.71 × 0.4 — where does the decimal point go? (a) 0.284 (b) 0.00284 (c) 0.0284 (d) 2.84
37. 37.0.42 × 0.9 — where does the decimal point go? (a) 3.78 (b) 0.00378 (c) 0.378 (d) 0.0378
38. 38.0.25 × 1.7 — where does the decimal point go? (a) 0.425 (b) 0.0425 (c) 4.25 (d) 0.00425
39. 39.8.4 × 0.9 — where does the decimal point go? (a) 7.56 (b) 75.6 (c) 0.756 (d) 0.0756
40. 40.4.9 × 0.7 — where does the decimal point go? (a) 0.0343 (b) 34.3 (c) 0.343 (d) 3.43

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