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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 330 · 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. 1.0.35 × 19 — where does the decimal point go? (a) 0.0665 (b) 0.665 (c) 6.65 (d) 66.5
  2. 2.0.44 × 2 — where does the decimal point go? (a) 0.88 (b) 0.088 (c) 8.8 (d) 0.0088
  3. 3.5.7 × 0.3 — where does the decimal point go? (a) 0.171 (b) 1.71 (c) 17.1 (d) 0.0171
  4. 4.0.18 × 8 — where does the decimal point go? (a) 14.4 (b) 0.144 (c) 1.44 (d) 0.0144
  5. 5.9.5 × 2.1 — where does the decimal point go? (a) 199.5 (b) 0.1995 (c) 19.95 (d) 1.995
  6. 6.6.1 × 21 — where does the decimal point go? (a) 1.281 (b) 128.1 (c) 1281 (d) 12.81
  7. 7.1.3 × 2 — where does the decimal point go? (a) 2.6 (b) 0.26 (c) 0.026 (d) 26
  8. 8.0.64 × 7 — where does the decimal point go? (a) 4.48 (b) 0.0448 (c) 44.8 (d) 0.448
  9. 9.0.21 × 36 — where does the decimal point go? (a) 0.0756 (b) 75.6 (c) 0.756 (d) 7.56
  10. 10.0.42 × 0.4 — where does the decimal point go? (a) 0.00168 (b) 1.68 (c) 0.0168 (d) 0.168
  11. 11.8.8 × 2 — where does the decimal point go? (a) 1.76 (b) 17.6 (c) 176 (d) 0.176
  12. 12.0.17 × 2.3 — where does the decimal point go? (a) 0.0391 (b) 0.00391 (c) 3.91 (d) 0.391
  13. 13.0.48 × 0.3 — where does the decimal point go? (a) 0.00144 (b) 0.0144 (c) 1.44 (d) 0.144
  14. 14.1.3 × 0.9 — where does the decimal point go? (a) 0.0117 (b) 1.17 (c) 0.117 (d) 11.7
  15. 15.5.7 × 3.6 — where does the decimal point go? (a) 205.2 (b) 20.52 (c) 2.052 (d) 0.2052
  16. 16.0.43 × 9 — where does the decimal point go? (a) 3.87 (b) 0.0387 (c) 0.387 (d) 38.7
  17. 17.1.9 × 29 — where does the decimal point go? (a) 55.1 (b) 5.51 (c) 551 (d) 0.551
  18. 18.0.39 × 0.7 — where does the decimal point go? (a) 0.0273 (b) 0.273 (c) 0.00273 (d) 2.73
  19. 19.9.3 × 1.9 — where does the decimal point go? (a) 1.767 (b) 17.67 (c) 176.7 (d) 0.1767
  20. 20.8.3 × 0.6 — where does the decimal point go? (a) 4.98 (b) 0.0498 (c) 0.498 (d) 49.8
  21. 21.1.3 × 14 — where does the decimal point go? (a) 1.82 (b) 182 (c) 0.182 (d) 18.2
  22. 22.9.9 × 0.6 — where does the decimal point go? (a) 59.4 (b) 5.94 (c) 0.594 (d) 0.0594
  23. 23.2.5 × 1.1 — where does the decimal point go? (a) 0.0275 (b) 27.5 (c) 2.75 (d) 0.275
  24. 24.5.6 × 2.6 — where does the decimal point go? (a) 145.6 (b) 0.1456 (c) 1.456 (d) 14.56
  25. 25.2.7 × 26 — where does the decimal point go? (a) 70.2 (b) 0.702 (c) 702 (d) 7.02
  26. 26.0.87 × 19 — where does the decimal point go? (a) 165.3 (b) 16.53 (c) 0.1653 (d) 1.653
  27. 27.9.6 × 1.4 — where does the decimal point go? (a) 1.344 (b) 0.1344 (c) 134.4 (d) 13.44
  28. 28.8.2 × 17 — where does the decimal point go? (a) 139.4 (b) 1.394 (c) 1394 (d) 13.94
  29. 29.0.72 × 6 — where does the decimal point go? (a) 0.432 (b) 43.2 (c) 4.32 (d) 0.0432
  30. 30.7.9 × 19 — where does the decimal point go? (a) 15.01 (b) 1.501 (c) 1501 (d) 150.1
  31. 31.7.9 × 0.7 — where does the decimal point go? (a) 0.0553 (b) 55.3 (c) 0.553 (d) 5.53
  32. 32.0.91 × 12 — where does the decimal point go? (a) 109.2 (b) 10.92 (c) 1.092 (d) 0.1092
  33. 33.4.4 × 0.6 — where does the decimal point go? (a) 26.4 (b) 0.264 (c) 2.64 (d) 0.0264
  34. 34.0.38 × 2 — where does the decimal point go? (a) 0.0076 (b) 0.076 (c) 7.6 (d) 0.76
  35. 35.4.3 × 24 — where does the decimal point go? (a) 1.032 (b) 1032 (c) 103.2 (d) 10.32
  36. 36.0.72 × 0.7 — where does the decimal point go? (a) 0.504 (b) 0.00504 (c) 5.04 (d) 0.0504
  37. 37.0.36 × 4.1 — where does the decimal point go? (a) 1.476 (b) 0.1476 (c) 0.01476 (d) 14.76
  38. 38.0.93 × 7 — where does the decimal point go? (a) 0.0651 (b) 65.1 (c) 0.651 (d) 6.51
  39. 39.1.7 × 4.7 — where does the decimal point go? (a) 79.9 (b) 0.799 (c) 7.99 (d) 0.0799
  40. 40.6.6 × 3.4 — where does the decimal point go? (a) 2.244 (b) 22.44 (c) 0.2244 (d) 224.4

Answer key

  1. 6.65
  2. 0.88
  3. 1.71
  4. 1.44
  5. 19.95
  6. 128.1
  7. 2.6
  8. 4.48
  9. 7.56
  10. 0.168
  11. 17.6
  12. 0.391
  13. 0.144
  14. 1.17
  15. 20.52
  16. 3.87
  17. 55.1
  18. 0.273
  19. 17.67
  20. 4.98
  21. 18.2
  22. 5.94
  23. 2.75
  24. 14.56
  25. 70.2
  26. 16.53
  27. 13.44
  28. 139.4
  29. 4.32
  30. 150.1
  31. 5.53
  32. 10.92
  33. 2.64
  34. 0.76
  35. 103.2
  36. 0.504
  37. 1.476
  38. 6.51
  39. 7.99
  40. 22.44

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