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Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 772 · 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. 1.0.71 × 0.6 — where does the decimal point go? (a) 0.426 (b) 4.26 (c) 0.00426 (d) 0.0426
  2. 2.0.41 × 0.8 — where does the decimal point go? (a) 0.0328 (b) 3.28 (c) 0.00328 (d) 0.328
  3. 3.9.5 × 0.5 — where does the decimal point go? (a) 4.75 (b) 0.0475 (c) 47.5 (d) 0.475
  4. 4.0.61 × 8 — where does the decimal point go? (a) 4.88 (b) 0.0488 (c) 0.488 (d) 48.8
  5. 5.0.88 × 1.4 — where does the decimal point go? (a) 12.32 (b) 0.1232 (c) 0.01232 (d) 1.232
  6. 6.1.8 × 3 — where does the decimal point go? (a) 0.54 (b) 5.4 (c) 0.054 (d) 54
  7. 7.4.1 × 49 — where does the decimal point go? (a) 20.09 (b) 2.009 (c) 2009 (d) 200.9
  8. 8.0.95 × 29 — where does the decimal point go? (a) 275.5 (b) 2.755 (c) 27.55 (d) 0.2755
  9. 9.5.8 × 0.4 — where does the decimal point go? (a) 0.232 (b) 0.0232 (c) 2.32 (d) 23.2
  10. 10.0.89 × 0.2 — where does the decimal point go? (a) 0.178 (b) 1.78 (c) 0.00178 (d) 0.0178
  11. 11.8.4 × 6 — where does the decimal point go? (a) 0.504 (b) 50.4 (c) 5.04 (d) 504
  12. 12.0.29 × 3.9 — where does the decimal point go? (a) 11.31 (b) 0.1131 (c) 1.131 (d) 0.01131
  13. 13.9.7 × 48 — where does the decimal point go? (a) 46.56 (b) 4.656 (c) 465.6 (d) 4656
  14. 14.5.9 × 3 — where does the decimal point go? (a) 1.77 (b) 0.177 (c) 17.7 (d) 177
  15. 15.0.59 × 3.9 — where does the decimal point go? (a) 2.301 (b) 0.2301 (c) 0.02301 (d) 23.01
  16. 16.0.71 × 0.4 — where does the decimal point go? (a) 0.284 (b) 0.00284 (c) 0.0284 (d) 2.84
  17. 17.3.3 × 0.8 — where does the decimal point go? (a) 0.0264 (b) 2.64 (c) 26.4 (d) 0.264
  18. 18.3.9 × 5 — where does the decimal point go? (a) 1.95 (b) 19.5 (c) 0.195 (d) 195
  19. 19.0.18 × 0.8 — where does the decimal point go? (a) 0.144 (b) 0.00144 (c) 1.44 (d) 0.0144
  20. 20.0.26 × 6 — where does the decimal point go? (a) 1.56 (b) 15.6 (c) 0.0156 (d) 0.156
  21. 21.0.97 × 0.6 — where does the decimal point go? (a) 0.0582 (b) 0.582 (c) 0.00582 (d) 5.82
  22. 22.0.49 × 1.8 — where does the decimal point go? (a) 8.82 (b) 0.0882 (c) 0.00882 (d) 0.882
  23. 23.0.84 × 4.7 — where does the decimal point go? (a) 3.948 (b) 0.03948 (c) 0.3948 (d) 39.48
  24. 24.4.5 × 21 — where does the decimal point go? (a) 94.5 (b) 9.45 (c) 945 (d) 0.945
  25. 25.0.83 × 3 — where does the decimal point go? (a) 0.249 (b) 2.49 (c) 0.0249 (d) 24.9
  26. 26.6.3 × 9 — where does the decimal point go? (a) 5.67 (b) 0.567 (c) 567 (d) 56.7
  27. 27.0.45 × 3.7 — where does the decimal point go? (a) 0.1665 (b) 1.665 (c) 0.01665 (d) 16.65
  28. 28.8.4 × 2.3 — where does the decimal point go? (a) 1.932 (b) 19.32 (c) 0.1932 (d) 193.2
  29. 29.0.62 × 0.6 — where does the decimal point go? (a) 0.00372 (b) 3.72 (c) 0.372 (d) 0.0372
  30. 30.7.8 × 0.9 — where does the decimal point go? (a) 70.2 (b) 7.02 (c) 0.702 (d) 0.0702
  31. 31.4.7 × 11 — where does the decimal point go? (a) 5.17 (b) 517 (c) 51.7 (d) 0.517
  32. 32.0.32 × 6 — where does the decimal point go? (a) 0.192 (b) 19.2 (c) 1.92 (d) 0.0192
  33. 33.1.9 × 3.2 — where does the decimal point go? (a) 60.8 (b) 0.608 (c) 0.0608 (d) 6.08
  34. 34.0.98 × 7 — where does the decimal point go? (a) 0.686 (b) 6.86 (c) 68.6 (d) 0.0686
  35. 35.0.17 × 1.4 — where does the decimal point go? (a) 0.238 (b) 2.38 (c) 0.0238 (d) 0.00238
  36. 36.0.68 × 2.9 — where does the decimal point go? (a) 0.01972 (b) 19.72 (c) 0.1972 (d) 1.972
  37. 37.3.2 × 4 — where does the decimal point go? (a) 0.128 (b) 1.28 (c) 128 (d) 12.8
  38. 38.6.9 × 6 — where does the decimal point go? (a) 4.14 (b) 41.4 (c) 0.414 (d) 414
  39. 39.1.9 × 0.9 — where does the decimal point go? (a) 0.0171 (b) 1.71 (c) 0.171 (d) 17.1
  40. 40.8.3 × 31 — where does the decimal point go? (a) 2573 (b) 25.73 (c) 2.573 (d) 257.3

Answer key

  1. 0.426
  2. 0.328
  3. 4.75
  4. 4.88
  5. 1.232
  6. 5.4
  7. 200.9
  8. 27.55
  9. 2.32
  10. 0.178
  11. 50.4
  12. 1.131
  13. 465.6
  14. 17.7
  15. 2.301
  16. 0.284
  17. 2.64
  18. 19.5
  19. 0.144
  20. 1.56
  21. 0.582
  22. 0.882
  23. 3.948
  24. 94.5
  25. 2.49
  26. 56.7
  27. 1.665
  28. 19.32
  29. 0.372
  30. 7.02
  31. 51.7
  32. 1.92
  33. 6.08
  34. 6.86
  35. 0.238
  36. 1.972
  37. 12.8
  38. 41.4
  39. 1.71
  40. 257.3

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