Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 976 · 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. 1.2.1 × 8 — where does the decimal point go? (a) 168 (b) 16.8 (c) 0.168 (d) 1.68
2. 2.9.4 × 4 — where does the decimal point go? (a) 3.76 (b) 0.376 (c) 37.6 (d) 376
3. 3.3.3 × 26 — where does the decimal point go? (a) 85.8 (b) 0.858 (c) 858 (d) 8.58
4. 4.1.6 × 7 — where does the decimal point go? (a) 112 (b) 0.112 (c) 1.12 (d) 11.2
5. 5.3.9 × 14 — where does the decimal point go? (a) 5.46 (b) 54.6 (c) 0.546 (d) 546
6. 6.8.6 × 39 — where does the decimal point go? (a) 3.354 (b) 335.4 (c) 33.54 (d) 3354
7. 7.3.5 × 2.3 — where does the decimal point go? (a) 80.5 (b) 8.05 (c) 0.0805 (d) 0.805
8. 8.0.93 × 0.9 — where does the decimal point go? (a) 0.837 (b) 0.00837 (c) 8.37 (d) 0.0837
9. 9.8.9 × 0.3 — where does the decimal point go? (a) 0.0267 (b) 26.7 (c) 0.267 (d) 2.67
10. 10.0.16 × 7 — where does the decimal point go? (a) 1.12 (b) 11.2 (c) 0.112 (d) 0.0112
11. 11.8.1 × 2.4 — where does the decimal point go? (a) 1.944 (b) 194.4 (c) 19.44 (d) 0.1944
12. 12.0.43 × 2 — where does the decimal point go? (a) 0.0086 (b) 0.086 (c) 8.6 (d) 0.86
13. 13.0.39 × 9 — where does the decimal point go? (a) 3.51 (b) 0.351 (c) 35.1 (d) 0.0351
14. 14.0.26 × 23 — where does the decimal point go? (a) 5.98 (b) 0.598 (c) 59.8 (d) 0.0598
15. 15.3.9 × 6 — where does the decimal point go? (a) 2.34 (b) 0.234 (c) 23.4 (d) 234
16. 16.0.33 × 3.6 — where does the decimal point go? (a) 11.88 (b) 1.188 (c) 0.1188 (d) 0.01188
17. 17.0.14 × 31 — where does the decimal point go? (a) 0.0434 (b) 4.34 (c) 43.4 (d) 0.434
18. 18.0.22 × 14 — where does the decimal point go? (a) 0.0308 (b) 30.8 (c) 3.08 (d) 0.308
19. 19.7.4 × 46 — where does the decimal point go? (a) 34.04 (b) 3.404 (c) 340.4 (d) 3404
20. 20.0.17 × 29 — where does the decimal point go? (a) 0.493 (b) 0.0493 (c) 4.93 (d) 49.3
21. 21.9.2 × 2.8 — where does the decimal point go? (a) 257.6 (b) 0.2576 (c) 2.576 (d) 25.76
22. 22.3.7 × 17 — where does the decimal point go? (a) 6.29 (b) 62.9 (c) 0.629 (d) 629
23. 23.8.8 × 36 — where does the decimal point go? (a) 3168 (b) 316.8 (c) 31.68 (d) 3.168
24. 24.3.8 × 42 — where does the decimal point go? (a) 159.6 (b) 1.596 (c) 15.96 (d) 1596
25. 25.1.6 × 34 — where does the decimal point go? (a) 5.44 (b) 0.544 (c) 544 (d) 54.4
26. 26.7.8 × 0.8 — where does the decimal point go? (a) 0.0624 (b) 0.624 (c) 62.4 (d) 6.24
27. 27.0.46 × 7 — where does the decimal point go? (a) 0.322 (b) 3.22 (c) 0.0322 (d) 32.2
28. 28.0.78 × 9 — where does the decimal point go? (a) 0.702 (b) 0.0702 (c) 70.2 (d) 7.02
29. 29.6.7 × 21 — where does the decimal point go? (a) 140.7 (b) 14.07 (c) 1.407 (d) 1407
30. 30.0.66 × 4 — where does the decimal point go? (a) 0.0264 (b) 0.264 (c) 2.64 (d) 26.4
31. 31.4.2 × 0.9 — where does the decimal point go? (a) 0.0378 (b) 37.8 (c) 0.378 (d) 3.78
32. 32.7.2 × 29 — where does the decimal point go? (a) 20.88 (b) 2.088 (c) 2088 (d) 208.8
33. 33.6.6 × 0.3 — where does the decimal point go? (a) 1.98 (b) 0.198 (c) 19.8 (d) 0.0198
34. 34.2.4 × 4.6 — where does the decimal point go? (a) 11.04 (b) 1.104 (c) 0.1104 (d) 110.4
35. 35.0.95 × 0.7 — where does the decimal point go? (a) 6.65 (b) 0.665 (c) 0.00665 (d) 0.0665
36. 36.7.9 × 2.3 — where does the decimal point go? (a) 18.17 (b) 0.1817 (c) 181.7 (d) 1.817
37. 37.0.48 × 2 — where does the decimal point go? (a) 9.6 (b) 0.0096 (c) 0.096 (d) 0.96
38. 38.0.35 × 3.9 — where does the decimal point go? (a) 1.365 (b) 0.01365 (c) 13.65 (d) 0.1365
39. 39.0.19 × 9 — where does the decimal point go? (a) 17.1 (b) 0.171 (c) 0.0171 (d) 1.71
40. 40.7.5 × 0.9 — where does the decimal point go? (a) 0.675 (b) 6.75 (c) 67.5 (d) 0.0675

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