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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 743 · 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. 1.0.37 × 2.9 — where does the decimal point go? (a) 0.1073 (b) 10.73 (c) 0.01073 (d) 1.073
  2. 2.0.82 × 6 — where does the decimal point go? (a) 49.2 (b) 0.0492 (c) 4.92 (d) 0.492
  3. 3.0.52 × 0.2 — where does the decimal point go? (a) 0.00104 (b) 0.104 (c) 0.0104 (d) 1.04
  4. 4.0.52 × 2.3 — where does the decimal point go? (a) 11.96 (b) 1.196 (c) 0.01196 (d) 0.1196
  5. 5.6.5 × 0.5 — where does the decimal point go? (a) 32.5 (b) 0.0325 (c) 0.325 (d) 3.25
  6. 6.6.7 × 0.3 — where does the decimal point go? (a) 2.01 (b) 0.0201 (c) 0.201 (d) 20.1
  7. 7.0.88 × 19 — where does the decimal point go? (a) 16.72 (b) 1.672 (c) 0.1672 (d) 167.2
  8. 8.2.9 × 3 — where does the decimal point go? (a) 0.87 (b) 0.087 (c) 87 (d) 8.7
  9. 9.0.34 × 1.8 — where does the decimal point go? (a) 6.12 (b) 0.00612 (c) 0.612 (d) 0.0612
  10. 10.8.2 × 6 — where does the decimal point go? (a) 0.492 (b) 49.2 (c) 492 (d) 4.92
  11. 11.0.43 × 0.3 — where does the decimal point go? (a) 1.29 (b) 0.129 (c) 0.00129 (d) 0.0129
  12. 12.0.87 × 0.3 — where does the decimal point go? (a) 2.61 (b) 0.261 (c) 0.00261 (d) 0.0261
  13. 13.0.99 × 2.2 — where does the decimal point go? (a) 2.178 (b) 0.02178 (c) 0.2178 (d) 21.78
  14. 14.0.27 × 25 — where does the decimal point go? (a) 0.0675 (b) 0.675 (c) 67.5 (d) 6.75
  15. 15.0.64 × 18 — where does the decimal point go? (a) 115.2 (b) 1.152 (c) 11.52 (d) 0.1152
  16. 16.0.97 × 4 — where does the decimal point go? (a) 38.8 (b) 0.0388 (c) 3.88 (d) 0.388
  17. 17.0.35 × 0.5 — where does the decimal point go? (a) 1.75 (b) 0.175 (c) 0.00175 (d) 0.0175
  18. 18.1.3 × 2 — where does the decimal point go? (a) 0.026 (b) 0.26 (c) 26 (d) 2.6
  19. 19.0.57 × 16 — where does the decimal point go? (a) 91.2 (b) 0.912 (c) 9.12 (d) 0.0912
  20. 20.0.35 × 35 — where does the decimal point go? (a) 12.25 (b) 122.5 (c) 0.1225 (d) 1.225
  21. 21.0.18 × 46 — where does the decimal point go? (a) 0.0828 (b) 82.8 (c) 8.28 (d) 0.828
  22. 22.3.5 × 3 — where does the decimal point go? (a) 1.05 (b) 105 (c) 10.5 (d) 0.105
  23. 23.1.8 × 1.2 — where does the decimal point go? (a) 2.16 (b) 21.6 (c) 0.0216 (d) 0.216
  24. 24.0.73 × 2.3 — where does the decimal point go? (a) 1.679 (b) 16.79 (c) 0.01679 (d) 0.1679
  25. 25.5.1 × 23 — where does the decimal point go? (a) 1.173 (b) 1173 (c) 11.73 (d) 117.3
  26. 26.0.94 × 39 — where does the decimal point go? (a) 36.66 (b) 3.666 (c) 366.6 (d) 0.3666
  27. 27.0.34 × 6 — where does the decimal point go? (a) 0.0204 (b) 20.4 (c) 0.204 (d) 2.04
  28. 28.0.97 × 2.8 — where does the decimal point go? (a) 2.716 (b) 0.02716 (c) 27.16 (d) 0.2716
  29. 29.6.9 × 26 — where does the decimal point go? (a) 179.4 (b) 1794 (c) 17.94 (d) 1.794
  30. 30.0.59 × 46 — where does the decimal point go? (a) 271.4 (b) 2.714 (c) 0.2714 (d) 27.14
  31. 31.5.2 × 48 — where does the decimal point go? (a) 2.496 (b) 24.96 (c) 2496 (d) 249.6
  32. 32.0.73 × 3.6 — where does the decimal point go? (a) 2.628 (b) 0.02628 (c) 26.28 (d) 0.2628
  33. 33.4.3 × 3 — where does the decimal point go? (a) 12.9 (b) 0.129 (c) 1.29 (d) 129
  34. 34.0.17 × 2.2 — where does the decimal point go? (a) 0.374 (b) 3.74 (c) 0.00374 (d) 0.0374
  35. 35.0.41 × 8 — where does the decimal point go? (a) 3.28 (b) 0.0328 (c) 0.328 (d) 32.8
  36. 36.0.35 × 3 — where does the decimal point go? (a) 1.05 (b) 10.5 (c) 0.0105 (d) 0.105
  37. 37.7.2 × 44 — where does the decimal point go? (a) 31.68 (b) 3168 (c) 316.8 (d) 3.168
  38. 38.3.7 × 0.2 — where does the decimal point go? (a) 0.0074 (b) 0.074 (c) 0.74 (d) 7.4
  39. 39.0.87 × 0.5 — where does the decimal point go? (a) 0.00435 (b) 4.35 (c) 0.0435 (d) 0.435
  40. 40.0.43 × 5 — where does the decimal point go? (a) 2.15 (b) 0.215 (c) 21.5 (d) 0.0215

Answer key

  1. 1.073
  2. 4.92
  3. 0.104
  4. 1.196
  5. 3.25
  6. 2.01
  7. 16.72
  8. 8.7
  9. 0.612
  10. 49.2
  11. 0.129
  12. 0.261
  13. 2.178
  14. 6.75
  15. 11.52
  16. 3.88
  17. 0.175
  18. 2.6
  19. 9.12
  20. 12.25
  21. 8.28
  22. 10.5
  23. 2.16
  24. 1.679
  25. 117.3
  26. 36.66
  27. 2.04
  28. 2.716
  29. 179.4
  30. 27.14
  31. 249.6
  32. 2.628
  33. 12.9
  34. 0.374
  35. 3.28
  36. 1.05
  37. 316.8
  38. 0.74
  39. 0.435
  40. 2.15

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