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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 14 · 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. 1.0.69 × 4.7 — where does the decimal point go? (a) 0.3243 (b) 32.43 (c) 0.03243 (d) 3.243
  2. 2.0.21 × 11 — where does the decimal point go? (a) 2.31 (b) 23.1 (c) 0.0231 (d) 0.231
  3. 3.2.2 × 4 — where does the decimal point go? (a) 0.088 (b) 8.8 (c) 88 (d) 0.88
  4. 4.0.59 × 6 — where does the decimal point go? (a) 0.0354 (b) 3.54 (c) 35.4 (d) 0.354
  5. 5.6.3 × 5 — where does the decimal point go? (a) 315 (b) 3.15 (c) 0.315 (d) 31.5
  6. 6.1.8 × 43 — where does the decimal point go? (a) 0.774 (b) 774 (c) 77.4 (d) 7.74
  7. 7.1.9 × 0.8 — where does the decimal point go? (a) 0.0152 (b) 15.2 (c) 1.52 (d) 0.152
  8. 8.4.8 × 4.2 — where does the decimal point go? (a) 2.016 (b) 0.2016 (c) 201.6 (d) 20.16
  9. 9.6.3 × 6 — where does the decimal point go? (a) 3.78 (b) 0.378 (c) 378 (d) 37.8
  10. 10.0.82 × 3 — where does the decimal point go? (a) 2.46 (b) 0.246 (c) 0.0246 (d) 24.6
  11. 11.4.6 × 13 — where does the decimal point go? (a) 0.598 (b) 598 (c) 59.8 (d) 5.98
  12. 12.0.81 × 24 — where does the decimal point go? (a) 0.1944 (b) 194.4 (c) 1.944 (d) 19.44
  13. 13.0.59 × 3.7 — where does the decimal point go? (a) 2.183 (b) 21.83 (c) 0.2183 (d) 0.02183
  14. 14.4.6 × 3 — where does the decimal point go? (a) 138 (b) 0.138 (c) 13.8 (d) 1.38
  15. 15.2.1 × 0.2 — where does the decimal point go? (a) 0.0042 (b) 0.042 (c) 0.42 (d) 4.2
  16. 16.0.22 × 4.9 — where does the decimal point go? (a) 1.078 (b) 0.01078 (c) 10.78 (d) 0.1078
  17. 17.9.9 × 0.7 — where does the decimal point go? (a) 69.3 (b) 6.93 (c) 0.0693 (d) 0.693
  18. 18.0.56 × 33 — where does the decimal point go? (a) 0.1848 (b) 1.848 (c) 18.48 (d) 184.8
  19. 19.2.4 × 0.4 — where does the decimal point go? (a) 0.096 (b) 0.96 (c) 9.6 (d) 0.0096
  20. 20.2.9 × 2.9 — where does the decimal point go? (a) 8.41 (b) 0.841 (c) 0.0841 (d) 84.1
  21. 21.0.28 × 0.8 — where does the decimal point go? (a) 2.24 (b) 0.0224 (c) 0.224 (d) 0.00224
  22. 22.0.91 × 1.5 — where does the decimal point go? (a) 1.365 (b) 0.1365 (c) 0.01365 (d) 13.65
  23. 23.7.3 × 42 — where does the decimal point go? (a) 306.6 (b) 3066 (c) 3.066 (d) 30.66
  24. 24.0.66 × 0.2 — where does the decimal point go? (a) 0.0132 (b) 0.00132 (c) 1.32 (d) 0.132
  25. 25.2.4 × 37 — where does the decimal point go? (a) 8.88 (b) 888 (c) 88.8 (d) 0.888
  26. 26.0.64 × 0.2 — where does the decimal point go? (a) 1.28 (b) 0.0128 (c) 0.00128 (d) 0.128
  27. 27.4.4 × 16 — where does the decimal point go? (a) 70.4 (b) 0.704 (c) 704 (d) 7.04
  28. 28.1.8 × 1.6 — where does the decimal point go? (a) 28.8 (b) 0.0288 (c) 2.88 (d) 0.288
  29. 29.3.2 × 0.4 — where does the decimal point go? (a) 1.28 (b) 0.128 (c) 0.0128 (d) 12.8
  30. 30.9.8 × 0.4 — where does the decimal point go? (a) 0.392 (b) 3.92 (c) 0.0392 (d) 39.2
  31. 31.9.4 × 3.7 — where does the decimal point go? (a) 347.8 (b) 0.3478 (c) 3.478 (d) 34.78
  32. 32.6.9 × 4 — where does the decimal point go? (a) 0.276 (b) 2.76 (c) 276 (d) 27.6
  33. 33.6.8 × 7 — where does the decimal point go? (a) 4.76 (b) 0.476 (c) 47.6 (d) 476
  34. 34.2.2 × 23 — where does the decimal point go? (a) 506 (b) 0.506 (c) 5.06 (d) 50.6
  35. 35.9.8 × 6 — where does the decimal point go? (a) 588 (b) 58.8 (c) 5.88 (d) 0.588
  36. 36.0.99 × 0.5 — where does the decimal point go? (a) 0.495 (b) 0.0495 (c) 4.95 (d) 0.00495
  37. 37.5.7 × 13 — where does the decimal point go? (a) 0.741 (b) 7.41 (c) 74.1 (d) 741
  38. 38.0.38 × 4.8 — where does the decimal point go? (a) 1.824 (b) 0.1824 (c) 0.01824 (d) 18.24
  39. 39.0.47 × 0.4 — where does the decimal point go? (a) 0.0188 (b) 0.00188 (c) 1.88 (d) 0.188
  40. 40.6.3 × 3.8 — where does the decimal point go? (a) 2.394 (b) 239.4 (c) 0.2394 (d) 23.94

Answer key

  1. 3.243
  2. 2.31
  3. 8.8
  4. 3.54
  5. 31.5
  6. 77.4
  7. 1.52
  8. 20.16
  9. 37.8
  10. 2.46
  11. 59.8
  12. 19.44
  13. 2.183
  14. 13.8
  15. 0.42
  16. 1.078
  17. 6.93
  18. 18.48
  19. 0.96
  20. 8.41
  21. 0.224
  22. 1.365
  23. 306.6
  24. 0.132
  25. 88.8
  26. 0.128
  27. 70.4
  28. 2.88
  29. 1.28
  30. 3.92
  31. 34.78
  32. 27.6
  33. 47.6
  34. 50.6
  35. 58.8
  36. 0.495
  37. 74.1
  38. 1.824
  39. 0.188
  40. 23.94

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