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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 535 · 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. 1.0.83 × 0.6 — where does the decimal point go? (a) 4.98 (b) 0.00498 (c) 0.498 (d) 0.0498
  2. 2.7.4 × 0.6 — where does the decimal point go? (a) 4.44 (b) 0.444 (c) 0.0444 (d) 44.4
  3. 3.6.6 × 2 — where does the decimal point go? (a) 132 (b) 1.32 (c) 13.2 (d) 0.132
  4. 4.0.44 × 8 — where does the decimal point go? (a) 35.2 (b) 0.0352 (c) 0.352 (d) 3.52
  5. 5.2.5 × 3.7 — where does the decimal point go? (a) 0.0925 (b) 9.25 (c) 0.925 (d) 92.5
  6. 6.5.1 × 7 — where does the decimal point go? (a) 0.357 (b) 35.7 (c) 357 (d) 3.57
  7. 7.8.7 × 2 — where does the decimal point go? (a) 0.174 (b) 174 (c) 17.4 (d) 1.74
  8. 8.9.1 × 27 — where does the decimal point go? (a) 2457 (b) 2.457 (c) 245.7 (d) 24.57
  9. 9.0.14 × 11 — where does the decimal point go? (a) 1.54 (b) 15.4 (c) 0.154 (d) 0.0154
  10. 10.9.9 × 7 — where does the decimal point go? (a) 693 (b) 6.93 (c) 69.3 (d) 0.693
  11. 11.0.97 × 8 — where does the decimal point go? (a) 0.0776 (b) 77.6 (c) 0.776 (d) 7.76
  12. 12.5.6 × 3 — where does the decimal point go? (a) 168 (b) 0.168 (c) 16.8 (d) 1.68
  13. 13.9.9 × 0.4 — where does the decimal point go? (a) 0.396 (b) 3.96 (c) 39.6 (d) 0.0396
  14. 14.1.7 × 0.7 — where does the decimal point go? (a) 0.119 (b) 0.0119 (c) 1.19 (d) 11.9
  15. 15.6.6 × 14 — where does the decimal point go? (a) 9.24 (b) 92.4 (c) 0.924 (d) 924
  16. 16.0.79 × 3 — where does the decimal point go? (a) 2.37 (b) 23.7 (c) 0.0237 (d) 0.237
  17. 17.0.32 × 8 — where does the decimal point go? (a) 25.6 (b) 2.56 (c) 0.0256 (d) 0.256
  18. 18.9.3 × 0.9 — where does the decimal point go? (a) 83.7 (b) 0.0837 (c) 8.37 (d) 0.837
  19. 19.5.9 × 29 — where does the decimal point go? (a) 17.11 (b) 1.711 (c) 1711 (d) 171.1
  20. 20.3.4 × 12 — where does the decimal point go? (a) 408 (b) 0.408 (c) 4.08 (d) 40.8
  21. 21.0.44 × 7 — where does the decimal point go? (a) 0.308 (b) 3.08 (c) 30.8 (d) 0.0308
  22. 22.0.44 × 0.2 — where does the decimal point go? (a) 0.00088 (b) 0.088 (c) 0.88 (d) 0.0088
  23. 23.9.4 × 0.3 — where does the decimal point go? (a) 28.2 (b) 0.282 (c) 2.82 (d) 0.0282
  24. 24.5.7 × 2.6 — where does the decimal point go? (a) 14.82 (b) 0.1482 (c) 1.482 (d) 148.2
  25. 25.8.5 × 4.1 — where does the decimal point go? (a) 348.5 (b) 3.485 (c) 34.85 (d) 0.3485
  26. 26.4.1 × 0.7 — where does the decimal point go? (a) 28.7 (b) 0.0287 (c) 2.87 (d) 0.287
  27. 27.0.91 × 8 — where does the decimal point go? (a) 0.728 (b) 7.28 (c) 0.0728 (d) 72.8
  28. 28.0.19 × 6 — where does the decimal point go? (a) 11.4 (b) 0.0114 (c) 1.14 (d) 0.114
  29. 29.0.16 × 2 — where does the decimal point go? (a) 3.2 (b) 0.0032 (c) 0.032 (d) 0.32
  30. 30.1.7 × 5 — where does the decimal point go? (a) 0.085 (b) 85 (c) 8.5 (d) 0.85
  31. 31.3.6 × 2.8 — where does the decimal point go? (a) 10.08 (b) 0.1008 (c) 1.008 (d) 100.8
  32. 32.0.14 × 7 — where does the decimal point go? (a) 0.0098 (b) 0.098 (c) 0.98 (d) 9.8
  33. 33.6.3 × 2.1 — where does the decimal point go? (a) 13.23 (b) 132.3 (c) 1.323 (d) 0.1323
  34. 34.1.9 × 4.1 — where does the decimal point go? (a) 77.9 (b) 0.779 (c) 0.0779 (d) 7.79
  35. 35.3.7 × 29 — where does the decimal point go? (a) 1073 (b) 107.3 (c) 1.073 (d) 10.73
  36. 36.0.15 × 1.3 — where does the decimal point go? (a) 1.95 (b) 0.0195 (c) 0.00195 (d) 0.195
  37. 37.0.47 × 0.5 — where does the decimal point go? (a) 0.235 (b) 2.35 (c) 0.00235 (d) 0.0235
  38. 38.0.86 × 8 — where does the decimal point go? (a) 0.688 (b) 68.8 (c) 0.0688 (d) 6.88
  39. 39.0.95 × 0.7 — where does the decimal point go? (a) 0.00665 (b) 0.0665 (c) 6.65 (d) 0.665
  40. 40.0.97 × 2.5 — where does the decimal point go? (a) 2.425 (b) 0.02425 (c) 24.25 (d) 0.2425

Answer key

  1. 0.498
  2. 4.44
  3. 13.2
  4. 3.52
  5. 9.25
  6. 35.7
  7. 17.4
  8. 245.7
  9. 1.54
  10. 69.3
  11. 7.76
  12. 16.8
  13. 3.96
  14. 1.19
  15. 92.4
  16. 2.37
  17. 2.56
  18. 8.37
  19. 171.1
  20. 40.8
  21. 3.08
  22. 0.088
  23. 2.82
  24. 14.82
  25. 34.85
  26. 2.87
  27. 7.28
  28. 1.14
  29. 0.32
  30. 8.5
  31. 10.08
  32. 0.98
  33. 13.23
  34. 7.79
  35. 107.3
  36. 0.195
  37. 0.235
  38. 6.88
  39. 0.665
  40. 2.425

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