Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 856 · 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. 1.9.8 × 2 — where does the decimal point go? (a) 196 (b) 19.6 (c) 1.96 (d) 0.196
2. 2.3.9 × 0.6 — where does the decimal point go? (a) 2.34 (b) 23.4 (c) 0.0234 (d) 0.234
3. 3.6.9 × 2.8 — where does the decimal point go? (a) 1.932 (b) 0.1932 (c) 19.32 (d) 193.2
4. 4.0.27 × 0.3 — where does the decimal point go? (a) 0.00081 (b) 0.081 (c) 0.81 (d) 0.0081
5. 5.1.2 × 11 — where does the decimal point go? (a) 0.132 (b) 1.32 (c) 132 (d) 13.2
6. 6.2.9 × 9 — where does the decimal point go? (a) 2.61 (b) 261 (c) 26.1 (d) 0.261
7. 7.2.2 × 8 — where does the decimal point go? (a) 176 (b) 1.76 (c) 0.176 (d) 17.6
8. 8.0.43 × 9 — where does the decimal point go? (a) 0.387 (b) 38.7 (c) 3.87 (d) 0.0387
9. 9.0.42 × 3 — where does the decimal point go? (a) 0.0126 (b) 1.26 (c) 12.6 (d) 0.126
10. 10.4.7 × 4 — where does the decimal point go? (a) 18.8 (b) 0.188 (c) 188 (d) 1.88
11. 11.0.81 × 2.1 — where does the decimal point go? (a) 1.701 (b) 0.1701 (c) 0.01701 (d) 17.01
12. 12.0.49 × 24 — where does the decimal point go? (a) 0.1176 (b) 1.176 (c) 11.76 (d) 117.6
13. 13.2.4 × 3.2 — where does the decimal point go? (a) 0.768 (b) 7.68 (c) 0.0768 (d) 76.8
14. 14.2.3 × 38 — where does the decimal point go? (a) 87.4 (b) 0.874 (c) 8.74 (d) 874
15. 15.7.8 × 2.8 — where does the decimal point go? (a) 2.184 (b) 218.4 (c) 0.2184 (d) 21.84
16. 16.0.35 × 17 — where does the decimal point go? (a) 5.95 (b) 59.5 (c) 0.0595 (d) 0.595
17. 17.9.5 × 37 — where does the decimal point go? (a) 35.15 (b) 351.5 (c) 3515 (d) 3.515
18. 18.5.4 × 8 — where does the decimal point go? (a) 432 (b) 0.432 (c) 43.2 (d) 4.32
19. 19.2.4 × 7 — where does the decimal point go? (a) 0.168 (b) 168 (c) 16.8 (d) 1.68
20. 20.3.4 × 0.6 — where does the decimal point go? (a) 2.04 (b) 0.0204 (c) 0.204 (d) 20.4
21. 21.4.3 × 0.9 — where does the decimal point go? (a) 3.87 (b) 38.7 (c) 0.0387 (d) 0.387
22. 22.7.8 × 9 — where does the decimal point go? (a) 7.02 (b) 70.2 (c) 0.702 (d) 702
23. 23.8.1 × 4.8 — where does the decimal point go? (a) 3.888 (b) 0.3888 (c) 388.8 (d) 38.88
24. 24.0.99 × 15 — where does the decimal point go? (a) 14.85 (b) 0.1485 (c) 148.5 (d) 1.485
25. 25.7.4 × 0.8 — where does the decimal point go? (a) 5.92 (b) 0.592 (c) 59.2 (d) 0.0592
26. 26.0.59 × 0.4 — where does the decimal point go? (a) 0.236 (b) 0.0236 (c) 2.36 (d) 0.00236
27. 27.0.18 × 0.4 — where does the decimal point go? (a) 0.0072 (b) 0.00072 (c) 0.072 (d) 0.72
28. 28.0.92 × 0.6 — where does the decimal point go? (a) 0.0552 (b) 5.52 (c) 0.552 (d) 0.00552
29. 29.8.2 × 0.7 — where does the decimal point go? (a) 57.4 (b) 5.74 (c) 0.574 (d) 0.0574
30. 30.0.76 × 4 — where does the decimal point go? (a) 0.304 (b) 3.04 (c) 0.0304 (d) 30.4
31. 31.0.12 × 9 — where does the decimal point go? (a) 0.0108 (b) 0.108 (c) 1.08 (d) 10.8
32. 32.0.37 × 7 — where does the decimal point go? (a) 25.9 (b) 0.0259 (c) 2.59 (d) 0.259
33. 33.9.1 × 3.7 — where does the decimal point go? (a) 0.3367 (b) 336.7 (c) 33.67 (d) 3.367
34. 34.0.82 × 0.3 — where does the decimal point go? (a) 0.246 (b) 2.46 (c) 0.0246 (d) 0.00246
35. 35.1.3 × 2.6 — where does the decimal point go? (a) 3.38 (b) 0.338 (c) 33.8 (d) 0.0338
36. 36.2.9 × 1.6 — where does the decimal point go? (a) 46.4 (b) 0.464 (c) 0.0464 (d) 4.64
37. 37.0.31 × 0.7 — where does the decimal point go? (a) 0.217 (b) 0.0217 (c) 0.00217 (d) 2.17
38. 38.3.9 × 0.7 — where does the decimal point go? (a) 27.3 (b) 0.0273 (c) 2.73 (d) 0.273
39. 39.0.26 × 4.6 — where does the decimal point go? (a) 0.1196 (b) 11.96 (c) 0.01196 (d) 1.196
40. 40.0.96 × 0.3 — where does the decimal point go? (a) 0.00288 (b) 0.0288 (c) 2.88 (d) 0.288

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