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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 4 · 40 questions
TalentJR

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

NameDateTime takenScore ___ / 40
  1. 1.39 × 50 =
  2. 2.84 × 5 =
  3. 3.98 × 5 =
  4. 4.83 × 50 =
  5. 5.39 × 50 =
  6. 6.42 × 5 =
  7. 7.66 × 50 =
  8. 8.88 × 5 =
  9. 9.22 × 50 =
  10. 10.98 × 5 =
  11. 11.38 × 5 =
  12. 12.93 × 50 =
  13. 13.23 × 5 =
  14. 14.91 × 5 =
  15. 15.81 × 5 =
  16. 16.97 × 50 =
  17. 17.41 × 5 =
  18. 18.48 × 50 =
  19. 19.42 × 50 =
  20. 20.22 × 5 =
  21. 21.74 × 50 =
  22. 22.13 × 5 =
  23. 23.30 × 5 =
  24. 24.98 × 5 =
  25. 25.97 × 50 =
  26. 26.60 × 50 =
  27. 27.37 × 50 =
  28. 28.69 × 5 =
  29. 29.16 × 5 =
  30. 30.69 × 5 =
  31. 31.89 × 5 =
  32. 32.37 × 50 =
  33. 33.20 × 5 =
  34. 34.72 × 50 =
  35. 35.73 × 50 =
  36. 36.54 × 50 =
  37. 37.81 × 5 =
  38. 38.49 × 5 =
  39. 39.18 × 50 =
  40. 40.62 × 5 =

Answer key

  1. 1950
  2. 420
  3. 490
  4. 4150
  5. 1950
  6. 210
  7. 3300
  8. 440
  9. 1100
  10. 490
  11. 190
  12. 4650
  13. 115
  14. 455
  15. 405
  16. 4850
  17. 205
  18. 2400
  19. 2100
  20. 110
  21. 3700
  22. 65
  23. 150
  24. 490
  25. 4850
  26. 3000
  27. 1850
  28. 345
  29. 80
  30. 345
  31. 445
  32. 1850
  33. 100
  34. 3600
  35. 3650
  36. 2700
  37. 405
  38. 245
  39. 900
  40. 310

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