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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 149 · 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. 1.8.8 × 2 — where does the decimal point go? (a) 17.6 (b) 176 (c) 0.176 (d) 1.76
  2. 2.0.38 × 0.3 — where does the decimal point go? (a) 1.14 (b) 0.00114 (c) 0.114 (d) 0.0114
  3. 3.0.52 × 43 — where does the decimal point go? (a) 2.236 (b) 223.6 (c) 22.36 (d) 0.2236
  4. 4.0.23 × 1.4 — where does the decimal point go? (a) 0.0322 (b) 0.322 (c) 0.00322 (d) 3.22
  5. 5.0.41 × 0.3 — where does the decimal point go? (a) 0.00123 (b) 0.123 (c) 0.0123 (d) 1.23
  6. 6.0.33 × 5 — where does the decimal point go? (a) 16.5 (b) 0.165 (c) 0.0165 (d) 1.65
  7. 7.4.7 × 45 — where does the decimal point go? (a) 2115 (b) 21.15 (c) 2.115 (d) 211.5
  8. 8.0.62 × 44 — where does the decimal point go? (a) 2.728 (b) 27.28 (c) 0.2728 (d) 272.8
  9. 9.0.87 × 0.2 — where does the decimal point go? (a) 0.0174 (b) 0.174 (c) 1.74 (d) 0.00174
  10. 10.0.83 × 36 — where does the decimal point go? (a) 2.988 (b) 298.8 (c) 0.2988 (d) 29.88
  11. 11.0.74 × 0.7 — where does the decimal point go? (a) 0.0518 (b) 0.518 (c) 0.00518 (d) 5.18
  12. 12.2.2 × 47 — where does the decimal point go? (a) 103.4 (b) 1.034 (c) 1034 (d) 10.34
  13. 13.4.8 × 3.7 — where does the decimal point go? (a) 177.6 (b) 1.776 (c) 17.76 (d) 0.1776
  14. 14.2.6 × 0.2 — where does the decimal point go? (a) 0.52 (b) 0.0052 (c) 0.052 (d) 5.2
  15. 15.0.42 × 2.3 — where does the decimal point go? (a) 0.0966 (b) 0.00966 (c) 9.66 (d) 0.966
  16. 16.0.42 × 0.2 — where does the decimal point go? (a) 0.0084 (b) 0.84 (c) 0.084 (d) 0.00084
  17. 17.0.45 × 4.9 — where does the decimal point go? (a) 2.205 (b) 0.2205 (c) 0.02205 (d) 22.05
  18. 18.7.2 × 0.8 — where does the decimal point go? (a) 0.0576 (b) 0.576 (c) 57.6 (d) 5.76
  19. 19.0.37 × 12 — where does the decimal point go? (a) 0.0444 (b) 0.444 (c) 44.4 (d) 4.44
  20. 20.0.29 × 13 — where does the decimal point go? (a) 3.77 (b) 0.0377 (c) 37.7 (d) 0.377
  21. 21.0.15 × 19 — where does the decimal point go? (a) 2.85 (b) 0.285 (c) 28.5 (d) 0.0285
  22. 22.0.34 × 34 — where does the decimal point go? (a) 1.156 (b) 11.56 (c) 115.6 (d) 0.1156
  23. 23.9.3 × 5 — where does the decimal point go? (a) 4.65 (b) 46.5 (c) 465 (d) 0.465
  24. 24.0.21 × 1.7 — where does the decimal point go? (a) 0.357 (b) 0.00357 (c) 0.0357 (d) 3.57
  25. 25.3.9 × 6 — where does the decimal point go? (a) 2.34 (b) 23.4 (c) 234 (d) 0.234
  26. 26.0.87 × 7 — where does the decimal point go? (a) 0.0609 (b) 6.09 (c) 0.609 (d) 60.9
  27. 27.6.8 × 19 — where does the decimal point go? (a) 12.92 (b) 129.2 (c) 1292 (d) 1.292
  28. 28.1.4 × 2 — where does the decimal point go? (a) 0.028 (b) 0.28 (c) 28 (d) 2.8
  29. 29.5.2 × 4 — where does the decimal point go? (a) 0.208 (b) 20.8 (c) 208 (d) 2.08
  30. 30.2.8 × 0.2 — where does the decimal point go? (a) 0.56 (b) 0.0056 (c) 0.056 (d) 5.6
  31. 31.0.89 × 0.6 — where does the decimal point go? (a) 0.0534 (b) 5.34 (c) 0.534 (d) 0.00534
  32. 32.0.37 × 2.2 — where does the decimal point go? (a) 0.814 (b) 0.0814 (c) 8.14 (d) 0.00814
  33. 33.0.21 × 5 — where does the decimal point go? (a) 10.5 (b) 1.05 (c) 0.105 (d) 0.0105
  34. 34.0.64 × 0.7 — where does the decimal point go? (a) 0.448 (b) 0.0448 (c) 0.00448 (d) 4.48
  35. 35.2.1 × 0.4 — where does the decimal point go? (a) 8.4 (b) 0.0084 (c) 0.84 (d) 0.084
  36. 36.0.91 × 3.4 — where does the decimal point go? (a) 0.3094 (b) 3.094 (c) 30.94 (d) 0.03094
  37. 37.2.6 × 3.1 — where does the decimal point go? (a) 0.0806 (b) 8.06 (c) 80.6 (d) 0.806
  38. 38.0.87 × 0.4 — where does the decimal point go? (a) 0.00348 (b) 0.0348 (c) 0.348 (d) 3.48
  39. 39.5.5 × 0.5 — where does the decimal point go? (a) 0.275 (b) 2.75 (c) 0.0275 (d) 27.5
  40. 40.9.3 × 0.6 — where does the decimal point go? (a) 0.0558 (b) 5.58 (c) 0.558 (d) 55.8

Answer key

  1. 17.6
  2. 0.114
  3. 22.36
  4. 0.322
  5. 0.123
  6. 1.65
  7. 211.5
  8. 27.28
  9. 0.174
  10. 29.88
  11. 0.518
  12. 103.4
  13. 17.76
  14. 0.52
  15. 0.966
  16. 0.084
  17. 2.205
  18. 5.76
  19. 4.44
  20. 3.77
  21. 2.85
  22. 11.56
  23. 46.5
  24. 0.357
  25. 23.4
  26. 6.09
  27. 129.2
  28. 2.8
  29. 20.8
  30. 0.56
  31. 0.534
  32. 0.814
  33. 1.05
  34. 0.448
  35. 0.84
  36. 3.094
  37. 8.06
  38. 0.348
  39. 2.75
  40. 5.58

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