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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 846 · 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. 1.9.1 × 0.3 — where does the decimal point go? (a) 0.273 (b) 2.73 (c) 27.3 (d) 0.0273
  2. 2.6.5 × 0.9 — where does the decimal point go? (a) 5.85 (b) 0.0585 (c) 0.585 (d) 58.5
  3. 3.0.76 × 0.8 — where does the decimal point go? (a) 0.00608 (b) 0.0608 (c) 0.608 (d) 6.08
  4. 4.0.46 × 0.3 — where does the decimal point go? (a) 0.00138 (b) 0.0138 (c) 0.138 (d) 1.38
  5. 5.0.96 × 3 — where does the decimal point go? (a) 0.0288 (b) 28.8 (c) 0.288 (d) 2.88
  6. 6.6.7 × 8 — where does the decimal point go? (a) 53.6 (b) 5.36 (c) 0.536 (d) 536
  7. 7.7.2 × 0.3 — where does the decimal point go? (a) 21.6 (b) 0.216 (c) 2.16 (d) 0.0216
  8. 8.0.65 × 2.7 — where does the decimal point go? (a) 0.01755 (b) 1.755 (c) 0.1755 (d) 17.55
  9. 9.0.38 × 43 — where does the decimal point go? (a) 163.4 (b) 16.34 (c) 0.1634 (d) 1.634
  10. 10.5.1 × 0.4 — where does the decimal point go? (a) 0.0204 (b) 20.4 (c) 2.04 (d) 0.204
  11. 11.3.2 × 18 — where does the decimal point go? (a) 5.76 (b) 57.6 (c) 576 (d) 0.576
  12. 12.2.6 × 2.6 — where does the decimal point go? (a) 6.76 (b) 0.0676 (c) 67.6 (d) 0.676
  13. 13.8.1 × 0.7 — where does the decimal point go? (a) 0.0567 (b) 0.567 (c) 56.7 (d) 5.67
  14. 14.0.19 × 8 — where does the decimal point go? (a) 0.152 (b) 0.0152 (c) 1.52 (d) 15.2
  15. 15.8.6 × 21 — where does the decimal point go? (a) 1.806 (b) 1806 (c) 18.06 (d) 180.6
  16. 16.9.5 × 3.3 — where does the decimal point go? (a) 313.5 (b) 3.135 (c) 31.35 (d) 0.3135
  17. 17.2.3 × 0.4 — where does the decimal point go? (a) 9.2 (b) 0.092 (c) 0.0092 (d) 0.92
  18. 18.6.7 × 0.7 — where does the decimal point go? (a) 0.469 (b) 46.9 (c) 4.69 (d) 0.0469
  19. 19.0.92 × 0.2 — where does the decimal point go? (a) 0.00184 (b) 0.184 (c) 1.84 (d) 0.0184
  20. 20.0.49 × 6 — where does the decimal point go? (a) 0.0294 (b) 0.294 (c) 2.94 (d) 29.4
  21. 21.0.12 × 0.9 — where does the decimal point go? (a) 0.0108 (b) 0.00108 (c) 0.108 (d) 1.08
  22. 22.9.8 × 7 — where does the decimal point go? (a) 686 (b) 68.6 (c) 0.686 (d) 6.86
  23. 23.0.88 × 18 — where does the decimal point go? (a) 15.84 (b) 1.584 (c) 0.1584 (d) 158.4
  24. 24.0.71 × 3 — where does the decimal point go? (a) 0.0213 (b) 0.213 (c) 2.13 (d) 21.3
  25. 25.0.92 × 6 — where does the decimal point go? (a) 0.552 (b) 5.52 (c) 55.2 (d) 0.0552
  26. 26.4.7 × 0.6 — where does the decimal point go? (a) 0.282 (b) 28.2 (c) 0.0282 (d) 2.82
  27. 27.6.2 × 0.7 — where does the decimal point go? (a) 43.4 (b) 4.34 (c) 0.0434 (d) 0.434
  28. 28.7.1 × 1.1 — where does the decimal point go? (a) 0.0781 (b) 0.781 (c) 7.81 (d) 78.1
  29. 29.0.31 × 4.5 — where does the decimal point go? (a) 1.395 (b) 0.1395 (c) 13.95 (d) 0.01395
  30. 30.3.7 × 3 — where does the decimal point go? (a) 0.111 (b) 11.1 (c) 111 (d) 1.11
  31. 31.0.19 × 2 — where does the decimal point go? (a) 3.8 (b) 0.0038 (c) 0.038 (d) 0.38
  32. 32.4.7 × 23 — where does the decimal point go? (a) 108.1 (b) 10.81 (c) 1.081 (d) 1081
  33. 33.5.7 × 8 — where does the decimal point go? (a) 4.56 (b) 45.6 (c) 0.456 (d) 456
  34. 34.0.46 × 0.4 — where does the decimal point go? (a) 0.0184 (b) 1.84 (c) 0.00184 (d) 0.184
  35. 35.0.14 × 22 — where does the decimal point go? (a) 3.08 (b) 30.8 (c) 0.0308 (d) 0.308
  36. 36.9.4 × 3.2 — where does the decimal point go? (a) 300.8 (b) 30.08 (c) 3.008 (d) 0.3008
  37. 37.2.2 × 8 — where does the decimal point go? (a) 17.6 (b) 0.176 (c) 176 (d) 1.76
  38. 38.9.6 × 1.7 — where does the decimal point go? (a) 0.1632 (b) 163.2 (c) 16.32 (d) 1.632
  39. 39.2.9 × 9 — where does the decimal point go? (a) 2.61 (b) 0.261 (c) 261 (d) 26.1
  40. 40.3.7 × 0.2 — where does the decimal point go? (a) 7.4 (b) 0.0074 (c) 0.74 (d) 0.074

Answer key

  1. 2.73
  2. 5.85
  3. 0.608
  4. 0.138
  5. 2.88
  6. 53.6
  7. 2.16
  8. 1.755
  9. 16.34
  10. 2.04
  11. 57.6
  12. 6.76
  13. 5.67
  14. 1.52
  15. 180.6
  16. 31.35
  17. 0.92
  18. 4.69
  19. 0.184
  20. 2.94
  21. 0.108
  22. 68.6
  23. 15.84
  24. 2.13
  25. 5.52
  26. 2.82
  27. 4.34
  28. 7.81
  29. 1.395
  30. 11.1
  31. 0.38
  32. 108.1
  33. 45.6
  34. 0.184
  35. 3.08
  36. 30.08
  37. 17.6
  38. 16.32
  39. 26.1
  40. 0.74

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