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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 825 · 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. 1.3.4 × 3.1 — where does the decimal point go? (a) 0.1054 (b) 105.4 (c) 1.054 (d) 10.54
  2. 2.0.41 × 0.2 — where does the decimal point go? (a) 0.082 (b) 0.82 (c) 0.00082 (d) 0.0082
  3. 3.4.4 × 39 — where does the decimal point go? (a) 171.6 (b) 1716 (c) 1.716 (d) 17.16
  4. 4.0.29 × 2.2 — where does the decimal point go? (a) 6.38 (b) 0.00638 (c) 0.0638 (d) 0.638
  5. 5.0.24 × 7 — where does the decimal point go? (a) 0.168 (b) 0.0168 (c) 16.8 (d) 1.68
  6. 6.0.26 × 0.3 — where does the decimal point go? (a) 0.078 (b) 0.78 (c) 0.0078 (d) 0.00078
  7. 7.6.7 × 2 — where does the decimal point go? (a) 13.4 (b) 1.34 (c) 0.134 (d) 134
  8. 8.0.84 × 37 — where does the decimal point go? (a) 3.108 (b) 310.8 (c) 0.3108 (d) 31.08
  9. 9.9.2 × 4.1 — where does the decimal point go? (a) 377.2 (b) 3.772 (c) 37.72 (d) 0.3772
  10. 10.2.1 × 1.8 — where does the decimal point go? (a) 0.0378 (b) 0.378 (c) 37.8 (d) 3.78
  11. 11.2.7 × 9 — where does the decimal point go? (a) 0.243 (b) 24.3 (c) 243 (d) 2.43
  12. 12.9.8 × 0.9 — where does the decimal point go? (a) 0.0882 (b) 88.2 (c) 8.82 (d) 0.882
  13. 13.7.4 × 0.9 — where does the decimal point go? (a) 6.66 (b) 0.666 (c) 0.0666 (d) 66.6
  14. 14.0.29 × 35 — where does the decimal point go? (a) 10.15 (b) 0.1015 (c) 101.5 (d) 1.015
  15. 15.8.9 × 4.8 — where does the decimal point go? (a) 0.4272 (b) 42.72 (c) 427.2 (d) 4.272
  16. 16.9.6 × 27 — where does the decimal point go? (a) 25.92 (b) 2592 (c) 259.2 (d) 2.592
  17. 17.0.37 × 2 — where does the decimal point go? (a) 0.74 (b) 0.074 (c) 7.4 (d) 0.0074
  18. 18.0.47 × 38 — where does the decimal point go? (a) 1.786 (b) 0.1786 (c) 178.6 (d) 17.86
  19. 19.0.41 × 23 — where does the decimal point go? (a) 0.0943 (b) 0.943 (c) 9.43 (d) 94.3
  20. 20.3.1 × 2 — where does the decimal point go? (a) 0.62 (b) 62 (c) 0.062 (d) 6.2
  21. 21.8.7 × 14 — where does the decimal point go? (a) 1.218 (b) 1218 (c) 12.18 (d) 121.8
  22. 22.0.73 × 0.8 — where does the decimal point go? (a) 0.00584 (b) 5.84 (c) 0.584 (d) 0.0584
  23. 23.6.3 × 7 — where does the decimal point go? (a) 4.41 (b) 0.441 (c) 441 (d) 44.1
  24. 24.6.4 × 48 — where does the decimal point go? (a) 3.072 (b) 30.72 (c) 307.2 (d) 3072
  25. 25.3.1 × 0.3 — where does the decimal point go? (a) 0.093 (b) 0.0093 (c) 9.3 (d) 0.93
  26. 26.1.6 × 3.8 — where does the decimal point go? (a) 60.8 (b) 6.08 (c) 0.608 (d) 0.0608
  27. 27.5.4 × 26 — where does the decimal point go? (a) 140.4 (b) 14.04 (c) 1404 (d) 1.404
  28. 28.3.6 × 0.2 — where does the decimal point go? (a) 7.2 (b) 0.072 (c) 0.0072 (d) 0.72
  29. 29.9.7 × 11 — where does the decimal point go? (a) 10.67 (b) 1.067 (c) 106.7 (d) 1067
  30. 30.7.1 × 16 — where does the decimal point go? (a) 11.36 (b) 1136 (c) 1.136 (d) 113.6
  31. 31.0.73 × 0.5 — where does the decimal point go? (a) 0.00365 (b) 0.365 (c) 0.0365 (d) 3.65
  32. 32.0.91 × 3.5 — where does the decimal point go? (a) 0.3185 (b) 0.03185 (c) 3.185 (d) 31.85
  33. 33.0.86 × 31 — where does the decimal point go? (a) 0.2666 (b) 266.6 (c) 2.666 (d) 26.66
  34. 34.7.7 × 2.5 — where does the decimal point go? (a) 0.1925 (b) 192.5 (c) 19.25 (d) 1.925
  35. 35.0.76 × 32 — where does the decimal point go? (a) 243.2 (b) 2.432 (c) 0.2432 (d) 24.32
  36. 36.3.6 × 3.7 — where does the decimal point go? (a) 13.32 (b) 1.332 (c) 133.2 (d) 0.1332
  37. 37.2.8 × 0.6 — where does the decimal point go? (a) 1.68 (b) 0.0168 (c) 0.168 (d) 16.8
  38. 38.7.1 × 3 — where does the decimal point go? (a) 0.213 (b) 213 (c) 2.13 (d) 21.3
  39. 39.2.9 × 0.2 — where does the decimal point go? (a) 0.58 (b) 0.0058 (c) 5.8 (d) 0.058
  40. 40.5.6 × 6 — where does the decimal point go? (a) 336 (b) 0.336 (c) 33.6 (d) 3.36

Answer key

  1. 10.54
  2. 0.082
  3. 171.6
  4. 0.638
  5. 1.68
  6. 0.078
  7. 13.4
  8. 31.08
  9. 37.72
  10. 3.78
  11. 24.3
  12. 8.82
  13. 6.66
  14. 10.15
  15. 42.72
  16. 259.2
  17. 0.74
  18. 17.86
  19. 9.43
  20. 6.2
  21. 121.8
  22. 0.584
  23. 44.1
  24. 307.2
  25. 0.93
  26. 6.08
  27. 140.4
  28. 0.72
  29. 106.7
  30. 113.6
  31. 0.365
  32. 3.185
  33. 26.66
  34. 19.25
  35. 24.32
  36. 13.32
  37. 1.68
  38. 21.3
  39. 0.58
  40. 33.6

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