Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 749 · 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. 1.3.2 × 19 — where does the decimal point go? (a) 6.08 (b) 60.8 (c) 0.608 (d) 608
2. 2.2.8 × 2.3 — where does the decimal point go? (a) 6.44 (b) 0.0644 (c) 64.4 (d) 0.644
3. 3.0.13 × 0.7 — where does the decimal point go? (a) 0.91 (b) 0.091 (c) 0.0091 (d) 0.00091
4. 4.0.86 × 2.6 — where does the decimal point go? (a) 22.36 (b) 0.02236 (c) 0.2236 (d) 2.236
5. 5.5.5 × 21 — where does the decimal point go? (a) 11.55 (b) 1155 (c) 115.5 (d) 1.155
6. 6.7.7 × 43 — where does the decimal point go? (a) 3.311 (b) 3311 (c) 33.11 (d) 331.1
7. 7.0.31 × 4.6 — where does the decimal point go? (a) 1.426 (b) 0.01426 (c) 0.1426 (d) 14.26
8. 8.0.33 × 3.3 — where does the decimal point go? (a) 0.01089 (b) 1.089 (c) 10.89 (d) 0.1089
9. 9.0.49 × 26 — where does the decimal point go? (a) 12.74 (b) 127.4 (c) 0.1274 (d) 1.274
10. 10.0.51 × 2.8 — where does the decimal point go? (a) 0.01428 (b) 1.428 (c) 14.28 (d) 0.1428
11. 11.0.65 × 3.7 — where does the decimal point go? (a) 24.05 (b) 2.405 (c) 0.02405 (d) 0.2405
12. 12.5.2 × 43 — where does the decimal point go? (a) 22.36 (b) 2236 (c) 2.236 (d) 223.6
13. 13.2.2 × 6 — where does the decimal point go? (a) 1.32 (b) 0.132 (c) 132 (d) 13.2
14. 14.0.44 × 0.3 — where does the decimal point go? (a) 1.32 (b) 0.132 (c) 0.00132 (d) 0.0132
15. 15.0.24 × 26 — where does the decimal point go? (a) 0.624 (b) 0.0624 (c) 6.24 (d) 62.4
16. 16.7.3 × 6 — where does the decimal point go? (a) 438 (b) 0.438 (c) 4.38 (d) 43.8
17. 17.8.1 × 3 — where does the decimal point go? (a) 0.243 (b) 243 (c) 24.3 (d) 2.43
18. 18.0.47 × 47 — where does the decimal point go? (a) 220.9 (b) 0.2209 (c) 22.09 (d) 2.209
19. 19.0.69 × 15 — where does the decimal point go? (a) 1.035 (b) 0.1035 (c) 103.5 (d) 10.35
20. 20.6.4 × 0.6 — where does the decimal point go? (a) 3.84 (b) 38.4 (c) 0.0384 (d) 0.384
21. 21.0.57 × 3.3 — where does the decimal point go? (a) 1.881 (b) 0.1881 (c) 18.81 (d) 0.01881
22. 22.7.9 × 2 — where does the decimal point go? (a) 0.158 (b) 15.8 (c) 158 (d) 1.58
23. 23.0.27 × 0.3 — where does the decimal point go? (a) 0.0081 (b) 0.081 (c) 0.00081 (d) 0.81
24. 24.0.52 × 37 — where does the decimal point go? (a) 19.24 (b) 1.924 (c) 0.1924 (d) 192.4
25. 25.0.99 × 36 — where does the decimal point go? (a) 356.4 (b) 0.3564 (c) 3.564 (d) 35.64
26. 26.0.97 × 1.5 — where does the decimal point go? (a) 0.1455 (b) 14.55 (c) 1.455 (d) 0.01455
27. 27.0.44 × 49 — where does the decimal point go? (a) 2.156 (b) 215.6 (c) 21.56 (d) 0.2156
28. 28.5.9 × 0.7 — where does the decimal point go? (a) 41.3 (b) 0.0413 (c) 0.413 (d) 4.13
29. 29.4.8 × 0.2 — where does the decimal point go? (a) 0.96 (b) 9.6 (c) 0.096 (d) 0.0096
30. 30.0.79 × 25 — where does the decimal point go? (a) 197.5 (b) 1.975 (c) 19.75 (d) 0.1975
31. 31.3.3 × 42 — where does the decimal point go? (a) 1.386 (b) 13.86 (c) 138.6 (d) 1386
32. 32.7.2 × 3.7 — where does the decimal point go? (a) 2.664 (b) 0.2664 (c) 266.4 (d) 26.64
33. 33.2.8 × 3.7 — where does the decimal point go? (a) 0.1036 (b) 103.6 (c) 1.036 (d) 10.36
34. 34.2.2 × 1.6 — where does the decimal point go? (a) 3.52 (b) 0.352 (c) 35.2 (d) 0.0352
35. 35.4.8 × 17 — where does the decimal point go? (a) 816 (b) 8.16 (c) 0.816 (d) 81.6
36. 36.7.2 × 2.7 — where does the decimal point go? (a) 19.44 (b) 0.1944 (c) 194.4 (d) 1.944
37. 37.0.67 × 0.5 — where does the decimal point go? (a) 3.35 (b) 0.335 (c) 0.00335 (d) 0.0335
38. 38.3.6 × 2.2 — where does the decimal point go? (a) 79.2 (b) 7.92 (c) 0.0792 (d) 0.792
39. 39.0.44 × 14 — where does the decimal point go? (a) 0.616 (b) 6.16 (c) 61.6 (d) 0.0616
40. 40.0.48 × 6 — where does the decimal point go? (a) 0.0288 (b) 0.288 (c) 28.8 (d) 2.88

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