← Where does the decimal point go? lesson New set →

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 860 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.0.97 × 2 — where does the decimal point go? (a) 0.0194 (b) 19.4 (c) 1.94 (d) 0.194
  2. 2.3.1 × 2 — where does the decimal point go? (a) 62 (b) 0.62 (c) 6.2 (d) 0.062
  3. 3.8.7 × 0.7 — where does the decimal point go? (a) 0.0609 (b) 6.09 (c) 0.609 (d) 60.9
  4. 4.0.55 × 5 — where does the decimal point go? (a) 27.5 (b) 0.0275 (c) 0.275 (d) 2.75
  5. 5.0.72 × 2 — where does the decimal point go? (a) 0.0144 (b) 0.144 (c) 14.4 (d) 1.44
  6. 6.0.84 × 9 — where does the decimal point go? (a) 75.6 (b) 7.56 (c) 0.756 (d) 0.0756
  7. 7.0.51 × 14 — where does the decimal point go? (a) 7.14 (b) 71.4 (c) 0.714 (d) 0.0714
  8. 8.4.8 × 9 — where does the decimal point go? (a) 0.432 (b) 432 (c) 4.32 (d) 43.2
  9. 9.2.3 × 7 — where does the decimal point go? (a) 1.61 (b) 0.161 (c) 161 (d) 16.1
  10. 10.8.1 × 2 — where does the decimal point go? (a) 162 (b) 0.162 (c) 1.62 (d) 16.2
  11. 11.0.83 × 3 — where does the decimal point go? (a) 2.49 (b) 24.9 (c) 0.249 (d) 0.0249
  12. 12.1.2 × 0.3 — where does the decimal point go? (a) 0.036 (b) 0.36 (c) 0.0036 (d) 3.6
  13. 13.0.46 × 2 — where does the decimal point go? (a) 0.092 (b) 0.0092 (c) 0.92 (d) 9.2
  14. 14.7.8 × 2 — where does the decimal point go? (a) 1.56 (b) 156 (c) 0.156 (d) 15.6
  15. 15.5.1 × 0.5 — where does the decimal point go? (a) 2.55 (b) 0.0255 (c) 0.255 (d) 25.5
  16. 16.0.98 × 4 — where does the decimal point go? (a) 0.0392 (b) 0.392 (c) 3.92 (d) 39.2
  17. 17.0.33 × 6 — where does the decimal point go? (a) 0.0198 (b) 19.8 (c) 1.98 (d) 0.198
  18. 18.0.33 × 0.4 — where does the decimal point go? (a) 0.0132 (b) 0.132 (c) 1.32 (d) 0.00132
  19. 19.0.34 × 42 — where does the decimal point go? (a) 1.428 (b) 14.28 (c) 0.1428 (d) 142.8
  20. 20.0.75 × 0.3 — where does the decimal point go? (a) 0.0225 (b) 0.00225 (c) 2.25 (d) 0.225
  21. 21.9.6 × 0.6 — where does the decimal point go? (a) 0.576 (b) 5.76 (c) 57.6 (d) 0.0576
  22. 22.5.3 × 46 — where does the decimal point go? (a) 243.8 (b) 2438 (c) 24.38 (d) 2.438
  23. 23.0.67 × 0.6 — where does the decimal point go? (a) 4.02 (b) 0.402 (c) 0.00402 (d) 0.0402
  24. 24.9.8 × 2.1 — where does the decimal point go? (a) 20.58 (b) 0.2058 (c) 2.058 (d) 205.8
  25. 25.0.58 × 37 — where does the decimal point go? (a) 0.2146 (b) 2.146 (c) 214.6 (d) 21.46
  26. 26.7.2 × 3 — where does the decimal point go? (a) 216 (b) 21.6 (c) 2.16 (d) 0.216
  27. 27.0.89 × 38 — where does the decimal point go? (a) 0.3382 (b) 338.2 (c) 33.82 (d) 3.382
  28. 28.9.9 × 0.7 — where does the decimal point go? (a) 69.3 (b) 6.93 (c) 0.0693 (d) 0.693
  29. 29.0.23 × 35 — where does the decimal point go? (a) 0.805 (b) 80.5 (c) 0.0805 (d) 8.05
  30. 30.0.13 × 49 — where does the decimal point go? (a) 0.637 (b) 0.0637 (c) 6.37 (d) 63.7
  31. 31.2.7 × 7 — where does the decimal point go? (a) 1.89 (b) 189 (c) 18.9 (d) 0.189
  32. 32.2.5 × 0.7 — where does the decimal point go? (a) 1.75 (b) 0.175 (c) 0.0175 (d) 17.5
  33. 33.0.59 × 0.4 — where does the decimal point go? (a) 0.0236 (b) 2.36 (c) 0.236 (d) 0.00236
  34. 34.3.1 × 0.2 — where does the decimal point go? (a) 0.0062 (b) 6.2 (c) 0.62 (d) 0.062
  35. 35.0.41 × 9 — where does the decimal point go? (a) 0.0369 (b) 0.369 (c) 3.69 (d) 36.9
  36. 36.8.9 × 42 — where does the decimal point go? (a) 373.8 (b) 37.38 (c) 3738 (d) 3.738
  37. 37.0.24 × 34 — where does the decimal point go? (a) 8.16 (b) 0.0816 (c) 81.6 (d) 0.816
  38. 38.0.35 × 3.9 — where does the decimal point go? (a) 0.1365 (b) 13.65 (c) 1.365 (d) 0.01365
  39. 39.0.21 × 7 — where does the decimal point go? (a) 1.47 (b) 0.147 (c) 0.0147 (d) 14.7
  40. 40.0.97 × 3.2 — where does the decimal point go? (a) 0.3104 (b) 31.04 (c) 3.104 (d) 0.03104

Answer key

  1. 1.94
  2. 6.2
  3. 6.09
  4. 2.75
  5. 1.44
  6. 7.56
  7. 7.14
  8. 43.2
  9. 16.1
  10. 16.2
  11. 2.49
  12. 0.36
  13. 0.92
  14. 15.6
  15. 2.55
  16. 3.92
  17. 1.98
  18. 0.132
  19. 14.28
  20. 0.225
  21. 5.76
  22. 243.8
  23. 0.402
  24. 20.58
  25. 21.46
  26. 21.6
  27. 33.82
  28. 6.93
  29. 8.05
  30. 6.37
  31. 18.9
  32. 1.75
  33. 0.236
  34. 0.62
  35. 3.69
  36. 373.8
  37. 8.16
  38. 1.365
  39. 1.47
  40. 3.104

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks