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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 412 · 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. 1.35 × 50 =
  2. 2.74 × 5 =
  3. 3.79 × 50 =
  4. 4.24 × 5 =
  5. 5.19 × 5 =
  6. 6.48 × 50 =
  7. 7.23 × 5 =
  8. 8.71 × 5 =
  9. 9.44 × 50 =
  10. 10.75 × 5 =
  11. 11.36 × 5 =
  12. 12.46 × 5 =
  13. 13.14 × 50 =
  14. 14.20 × 50 =
  15. 15.46 × 50 =
  16. 16.24 × 5 =
  17. 17.28 × 5 =
  18. 18.32 × 5 =
  19. 19.94 × 5 =
  20. 20.85 × 5 =
  21. 21.76 × 50 =
  22. 22.84 × 5 =
  23. 23.83 × 5 =
  24. 24.26 × 50 =
  25. 25.77 × 5 =
  26. 26.67 × 50 =
  27. 27.39 × 5 =
  28. 28.97 × 50 =
  29. 29.73 × 50 =
  30. 30.77 × 5 =
  31. 31.40 × 50 =
  32. 32.88 × 50 =
  33. 33.90 × 5 =
  34. 34.19 × 5 =
  35. 35.70 × 50 =
  36. 36.75 × 50 =
  37. 37.64 × 50 =
  38. 38.15 × 50 =
  39. 39.60 × 5 =
  40. 40.73 × 5 =

Answer key

  1. 1750
  2. 370
  3. 3950
  4. 120
  5. 95
  6. 2400
  7. 115
  8. 355
  9. 2200
  10. 375
  11. 180
  12. 230
  13. 700
  14. 1000
  15. 2300
  16. 120
  17. 140
  18. 160
  19. 470
  20. 425
  21. 3800
  22. 420
  23. 415
  24. 1300
  25. 385
  26. 3350
  27. 195
  28. 4850
  29. 3650
  30. 385
  31. 2000
  32. 4400
  33. 450
  34. 95
  35. 3500
  36. 3750
  37. 3200
  38. 750
  39. 300
  40. 365

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