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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 366 · 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. 1.2.4 × 14 — where does the decimal point go? (a) 3.36 (b) 336 (c) 33.6 (d) 0.336
  2. 2.3.9 × 15 — where does the decimal point go? (a) 58.5 (b) 0.585 (c) 585 (d) 5.85
  3. 3.0.24 × 0.2 — where does the decimal point go? (a) 0.048 (b) 0.0048 (c) 0.48 (d) 0.00048
  4. 4.3.6 × 48 — where does the decimal point go? (a) 1.728 (b) 17.28 (c) 1728 (d) 172.8
  5. 5.0.14 × 17 — where does the decimal point go? (a) 0.238 (b) 0.0238 (c) 2.38 (d) 23.8
  6. 6.1.4 × 0.6 — where does the decimal point go? (a) 0.084 (b) 8.4 (c) 0.0084 (d) 0.84
  7. 7.0.81 × 0.7 — where does the decimal point go? (a) 0.0567 (b) 0.567 (c) 0.00567 (d) 5.67
  8. 8.0.22 × 0.4 — where does the decimal point go? (a) 0.00088 (b) 0.0088 (c) 0.088 (d) 0.88
  9. 9.5.3 × 0.5 — where does the decimal point go? (a) 0.265 (b) 0.0265 (c) 2.65 (d) 26.5
  10. 10.2.2 × 0.3 — where does the decimal point go? (a) 0.066 (b) 0.66 (c) 0.0066 (d) 6.6
  11. 11.0.77 × 6 — where does the decimal point go? (a) 46.2 (b) 0.462 (c) 4.62 (d) 0.0462
  12. 12.0.57 × 4.1 — where does the decimal point go? (a) 0.2337 (b) 2.337 (c) 23.37 (d) 0.02337
  13. 13.0.18 × 9 — where does the decimal point go? (a) 0.162 (b) 16.2 (c) 1.62 (d) 0.0162
  14. 14.7.6 × 28 — where does the decimal point go? (a) 2128 (b) 21.28 (c) 212.8 (d) 2.128
  15. 15.1.3 × 4 — where does the decimal point go? (a) 52 (b) 0.52 (c) 5.2 (d) 0.052
  16. 16.9.6 × 8 — where does the decimal point go? (a) 76.8 (b) 768 (c) 0.768 (d) 7.68
  17. 17.5.1 × 2.9 — where does the decimal point go? (a) 1.479 (b) 147.9 (c) 0.1479 (d) 14.79
  18. 18.8.4 × 34 — where does the decimal point go? (a) 2.856 (b) 28.56 (c) 285.6 (d) 2856
  19. 19.8.6 × 49 — where does the decimal point go? (a) 421.4 (b) 4214 (c) 42.14 (d) 4.214
  20. 20.2.7 × 27 — where does the decimal point go? (a) 0.729 (b) 72.9 (c) 7.29 (d) 729
  21. 21.0.13 × 1.8 — where does the decimal point go? (a) 2.34 (b) 0.0234 (c) 0.234 (d) 0.00234
  22. 22.1.4 × 1.7 — where does the decimal point go? (a) 0.0238 (b) 0.238 (c) 23.8 (d) 2.38
  23. 23.0.53 × 8 — where does the decimal point go? (a) 4.24 (b) 0.424 (c) 42.4 (d) 0.0424
  24. 24.0.53 × 34 — where does the decimal point go? (a) 180.2 (b) 18.02 (c) 1.802 (d) 0.1802
  25. 25.6.1 × 34 — where does the decimal point go? (a) 2.074 (b) 2074 (c) 207.4 (d) 20.74
  26. 26.0.36 × 8 — where does the decimal point go? (a) 2.88 (b) 0.0288 (c) 0.288 (d) 28.8
  27. 27.8.8 × 0.9 — where does the decimal point go? (a) 0.0792 (b) 0.792 (c) 7.92 (d) 79.2
  28. 28.0.76 × 0.4 — where does the decimal point go? (a) 0.304 (b) 0.0304 (c) 0.00304 (d) 3.04
  29. 29.0.34 × 0.3 — where does the decimal point go? (a) 0.00102 (b) 0.102 (c) 1.02 (d) 0.0102
  30. 30.4.1 × 32 — where does the decimal point go? (a) 131.2 (b) 1312 (c) 1.312 (d) 13.12
  31. 31.2.9 × 5 — where does the decimal point go? (a) 145 (b) 14.5 (c) 0.145 (d) 1.45
  32. 32.0.87 × 0.5 — where does the decimal point go? (a) 0.435 (b) 0.0435 (c) 4.35 (d) 0.00435
  33. 33.0.62 × 7 — where does the decimal point go? (a) 0.434 (b) 4.34 (c) 43.4 (d) 0.0434
  34. 34.4.7 × 0.2 — where does the decimal point go? (a) 0.0094 (b) 9.4 (c) 0.094 (d) 0.94
  35. 35.0.92 × 0.3 — where does the decimal point go? (a) 0.0276 (b) 2.76 (c) 0.276 (d) 0.00276
  36. 36.0.36 × 3.2 — where does the decimal point go? (a) 1.152 (b) 11.52 (c) 0.01152 (d) 0.1152
  37. 37.1.7 × 3.1 — where does the decimal point go? (a) 5.27 (b) 0.0527 (c) 52.7 (d) 0.527
  38. 38.6.5 × 23 — where does the decimal point go? (a) 1.495 (b) 14.95 (c) 1495 (d) 149.5
  39. 39.0.86 × 2 — where does the decimal point go? (a) 1.72 (b) 0.0172 (c) 0.172 (d) 17.2
  40. 40.2.7 × 0.8 — where does the decimal point go? (a) 21.6 (b) 0.0216 (c) 2.16 (d) 0.216

Answer key

  1. 33.6
  2. 58.5
  3. 0.048
  4. 172.8
  5. 2.38
  6. 0.84
  7. 0.567
  8. 0.088
  9. 2.65
  10. 0.66
  11. 4.62
  12. 2.337
  13. 1.62
  14. 212.8
  15. 5.2
  16. 76.8
  17. 14.79
  18. 285.6
  19. 421.4
  20. 72.9
  21. 0.234
  22. 2.38
  23. 4.24
  24. 18.02
  25. 207.4
  26. 2.88
  27. 7.92
  28. 0.304
  29. 0.102
  30. 131.2
  31. 14.5
  32. 0.435
  33. 4.34
  34. 0.94
  35. 0.276
  36. 1.152
  37. 5.27
  38. 149.5
  39. 1.72
  40. 2.16

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