Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 104 · 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. 1.0.94 × 19 — where does the decimal point go? (a) 17.86 (b) 178.6 (c) 0.1786 (d) 1.786
2. 2.0.22 × 3.6 — where does the decimal point go? (a) 0.0792 (b) 0.792 (c) 0.00792 (d) 7.92
3. 3.0.22 × 1.2 — where does the decimal point go? (a) 0.0264 (b) 2.64 (c) 0.264 (d) 0.00264
4. 4.0.99 × 0.4 — where does the decimal point go? (a) 0.0396 (b) 3.96 (c) 0.00396 (d) 0.396
5. 5.8.7 × 4.2 — where does the decimal point go? (a) 3.654 (b) 0.3654 (c) 365.4 (d) 36.54
6. 6.2.5 × 1.9 — where does the decimal point go? (a) 0.475 (b) 4.75 (c) 0.0475 (d) 47.5
7. 7.5.1 × 9 — where does the decimal point go? (a) 0.459 (b) 459 (c) 4.59 (d) 45.9
8. 8.0.37 × 0.6 — where does the decimal point go? (a) 2.22 (b) 0.222 (c) 0.0222 (d) 0.00222
9. 9.4.1 × 29 — where does the decimal point go? (a) 118.9 (b) 1.189 (c) 11.89 (d) 1189
10. 10.0.75 × 3.7 — where does the decimal point go? (a) 27.75 (b) 0.2775 (c) 2.775 (d) 0.02775
11. 11.0.93 × 0.9 — where does the decimal point go? (a) 0.00837 (b) 8.37 (c) 0.0837 (d) 0.837
12. 12.1.3 × 22 — where does the decimal point go? (a) 2.86 (b) 0.286 (c) 286 (d) 28.6
13. 13.0.77 × 1.9 — where does the decimal point go? (a) 0.01463 (b) 14.63 (c) 0.1463 (d) 1.463
14. 14.0.34 × 0.9 — where does the decimal point go? (a) 0.306 (b) 0.0306 (c) 0.00306 (d) 3.06
15. 15.0.82 × 19 — where does the decimal point go? (a) 1.558 (b) 0.1558 (c) 15.58 (d) 155.8
16. 16.4.1 × 4.3 — where does the decimal point go? (a) 176.3 (b) 17.63 (c) 1.763 (d) 0.1763
17. 17.0.23 × 0.6 — where does the decimal point go? (a) 0.138 (b) 0.0138 (c) 0.00138 (d) 1.38
18. 18.0.12 × 0.3 — where does the decimal point go? (a) 0.0036 (b) 0.36 (c) 0.00036 (d) 0.036
19. 19.0.77 × 1.8 — where does the decimal point go? (a) 1.386 (b) 13.86 (c) 0.01386 (d) 0.1386
20. 20.0.63 × 2 — where does the decimal point go? (a) 0.126 (b) 1.26 (c) 0.0126 (d) 12.6
21. 21.8.7 × 9 — where does the decimal point go? (a) 0.783 (b) 78.3 (c) 783 (d) 7.83
22. 22.0.82 × 4 — where does the decimal point go? (a) 3.28 (b) 32.8 (c) 0.0328 (d) 0.328
23. 23.4.1 × 3.9 — where does the decimal point go? (a) 15.99 (b) 1.599 (c) 159.9 (d) 0.1599
24. 24.0.44 × 0.8 — where does the decimal point go? (a) 3.52 (b) 0.0352 (c) 0.352 (d) 0.00352
25. 25.9.7 × 1.5 — where does the decimal point go? (a) 145.5 (b) 14.55 (c) 0.1455 (d) 1.455
26. 26.0.88 × 8 — where does the decimal point go? (a) 7.04 (b) 0.704 (c) 70.4 (d) 0.0704
27. 27.4.9 × 9 — where does the decimal point go? (a) 4.41 (b) 0.441 (c) 441 (d) 44.1
28. 28.0.23 × 0.4 — where does the decimal point go? (a) 0.00092 (b) 0.0092 (c) 0.92 (d) 0.092
29. 29.7.2 × 2.9 — where does the decimal point go? (a) 20.88 (b) 0.2088 (c) 208.8 (d) 2.088
30. 30.0.23 × 1.3 — where does the decimal point go? (a) 2.99 (b) 0.299 (c) 0.0299 (d) 0.00299
31. 31.8.1 × 2 — where does the decimal point go? (a) 1.62 (b) 0.162 (c) 16.2 (d) 162
32. 32.0.17 × 1.6 — where does the decimal point go? (a) 0.0272 (b) 0.272 (c) 0.00272 (d) 2.72
33. 33.4.9 × 36 — where does the decimal point go? (a) 1764 (b) 17.64 (c) 1.764 (d) 176.4
34. 34.3.3 × 4.3 — where does the decimal point go? (a) 1.419 (b) 0.1419 (c) 141.9 (d) 14.19
35. 35.0.69 × 4.8 — where does the decimal point go? (a) 0.03312 (b) 0.3312 (c) 3.312 (d) 33.12
36. 36.2.7 × 26 — where does the decimal point go? (a) 7.02 (b) 702 (c) 70.2 (d) 0.702
37. 37.0.77 × 32 — where does the decimal point go? (a) 0.2464 (b) 24.64 (c) 2.464 (d) 246.4
38. 38.0.27 × 0.5 — where does the decimal point go? (a) 0.0135 (b) 0.135 (c) 1.35 (d) 0.00135
39. 39.8.5 × 0.3 — where does the decimal point go? (a) 0.0255 (b) 25.5 (c) 2.55 (d) 0.255
40. 40.8.2 × 3 — where does the decimal point go? (a) 2.46 (b) 0.246 (c) 246 (d) 24.6

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