Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 977 · 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. 1.0.79 × 0.4 — where does the decimal point go? (a) 0.316 (b) 0.00316 (c) 3.16 (d) 0.0316
2. 2.4.7 × 19 — where does the decimal point go? (a) 8.93 (b) 893 (c) 0.893 (d) 89.3
3. 3.0.33 × 3.8 — where does the decimal point go? (a) 12.54 (b) 0.1254 (c) 1.254 (d) 0.01254
4. 4.0.74 × 0.8 — where does the decimal point go? (a) 0.592 (b) 0.0592 (c) 5.92 (d) 0.00592
5. 5.0.92 × 2.7 — where does the decimal point go? (a) 0.02484 (b) 0.2484 (c) 24.84 (d) 2.484
6. 6.8.2 × 1.6 — where does the decimal point go? (a) 0.1312 (b) 131.2 (c) 1.312 (d) 13.12
7. 7.9.3 × 13 — where does the decimal point go? (a) 1.209 (b) 12.09 (c) 1209 (d) 120.9
8. 8.0.65 × 47 — where does the decimal point go? (a) 30.55 (b) 305.5 (c) 0.3055 (d) 3.055
9. 9.7.4 × 44 — where does the decimal point go? (a) 3256 (b) 325.6 (c) 32.56 (d) 3.256
10. 10.3.4 × 22 — where does the decimal point go? (a) 7.48 (b) 0.748 (c) 74.8 (d) 748
11. 11.0.31 × 1.7 — where does the decimal point go? (a) 0.0527 (b) 0.00527 (c) 0.527 (d) 5.27
12. 12.8.3 × 27 — where does the decimal point go? (a) 2.241 (b) 224.1 (c) 2241 (d) 22.41
13. 13.0.12 × 2.6 — where does the decimal point go? (a) 0.312 (b) 0.0312 (c) 0.00312 (d) 3.12
14. 14.6.5 × 0.5 — where does the decimal point go? (a) 3.25 (b) 32.5 (c) 0.325 (d) 0.0325
15. 15.0.93 × 3 — where does the decimal point go? (a) 27.9 (b) 0.279 (c) 2.79 (d) 0.0279
16. 16.0.42 × 1.8 — where does the decimal point go? (a) 0.0756 (b) 0.00756 (c) 0.756 (d) 7.56
17. 17.7.8 × 14 — where does the decimal point go? (a) 109.2 (b) 1.092 (c) 10.92 (d) 1092
18. 18.0.66 × 46 — where does the decimal point go? (a) 3.036 (b) 30.36 (c) 303.6 (d) 0.3036
19. 19.0.23 × 8 — where does the decimal point go? (a) 1.84 (b) 0.184 (c) 18.4 (d) 0.0184
20. 20.8.8 × 4.8 — where does the decimal point go? (a) 0.4224 (b) 422.4 (c) 42.24 (d) 4.224
21. 21.0.29 × 0.8 — where does the decimal point go? (a) 0.00232 (b) 2.32 (c) 0.0232 (d) 0.232
22. 22.0.35 × 7 — where does the decimal point go? (a) 24.5 (b) 0.245 (c) 2.45 (d) 0.0245
23. 23.3.7 × 48 — where does the decimal point go? (a) 1776 (b) 17.76 (c) 177.6 (d) 1.776
24. 24.2.2 × 37 — where does the decimal point go? (a) 81.4 (b) 0.814 (c) 814 (d) 8.14
25. 25.0.54 × 3.1 — where does the decimal point go? (a) 1.674 (b) 0.1674 (c) 16.74 (d) 0.01674
26. 26.1.2 × 2 — where does the decimal point go? (a) 24 (b) 2.4 (c) 0.24 (d) 0.024
27. 27.0.37 × 43 — where does the decimal point go? (a) 1.591 (b) 159.1 (c) 0.1591 (d) 15.91
28. 28.9.6 × 0.4 — where does the decimal point go? (a) 3.84 (b) 0.0384 (c) 38.4 (d) 0.384
29. 29.6.9 × 0.3 — where does the decimal point go? (a) 0.0207 (b) 20.7 (c) 0.207 (d) 2.07
30. 30.8.2 × 0.4 — where does the decimal point go? (a) 0.0328 (b) 3.28 (c) 32.8 (d) 0.328
31. 31.2.4 × 4 — where does the decimal point go? (a) 96 (b) 9.6 (c) 0.096 (d) 0.96
32. 32.0.29 × 6 — where does the decimal point go? (a) 1.74 (b) 17.4 (c) 0.174 (d) 0.0174
33. 33.6.4 × 3 — where does the decimal point go? (a) 19.2 (b) 1.92 (c) 0.192 (d) 192
34. 34.0.15 × 3.3 — where does the decimal point go? (a) 0.0495 (b) 4.95 (c) 0.00495 (d) 0.495
35. 35.0.74 × 3.4 — where does the decimal point go? (a) 0.2516 (b) 0.02516 (c) 25.16 (d) 2.516
36. 36.0.89 × 0.2 — where does the decimal point go? (a) 0.178 (b) 0.00178 (c) 1.78 (d) 0.0178
37. 37.0.27 × 0.3 — where does the decimal point go? (a) 0.81 (b) 0.0081 (c) 0.00081 (d) 0.081
38. 38.0.67 × 37 — where does the decimal point go? (a) 2.479 (b) 24.79 (c) 247.9 (d) 0.2479
39. 39.7.6 × 48 — where does the decimal point go? (a) 3.648 (b) 364.8 (c) 36.48 (d) 3648
40. 40.9.4 × 9 — where does the decimal point go? (a) 846 (b) 84.6 (c) 8.46 (d) 0.846

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