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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 319 · 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. 1.21 × 50 =
  2. 2.30 × 5 =
  3. 3.42 × 5 =
  4. 4.12 × 5 =
  5. 5.19 × 50 =
  6. 6.22 × 50 =
  7. 7.23 × 50 =
  8. 8.47 × 5 =
  9. 9.40 × 5 =
  10. 10.77 × 50 =
  11. 11.45 × 5 =
  12. 12.14 × 5 =
  13. 13.98 × 50 =
  14. 14.78 × 5 =
  15. 15.82 × 50 =
  16. 16.43 × 5 =
  17. 17.72 × 5 =
  18. 18.60 × 5 =
  19. 19.95 × 50 =
  20. 20.80 × 5 =
  21. 21.34 × 50 =
  22. 22.38 × 50 =
  23. 23.39 × 50 =
  24. 24.94 × 50 =
  25. 25.61 × 5 =
  26. 26.79 × 5 =
  27. 27.12 × 50 =
  28. 28.32 × 5 =
  29. 29.22 × 5 =
  30. 30.40 × 5 =
  31. 31.87 × 5 =
  32. 32.30 × 5 =
  33. 33.79 × 5 =
  34. 34.98 × 5 =
  35. 35.25 × 5 =
  36. 36.74 × 5 =
  37. 37.63 × 50 =
  38. 38.80 × 50 =
  39. 39.30 × 50 =
  40. 40.23 × 5 =

Answer key

  1. 1050
  2. 150
  3. 210
  4. 60
  5. 950
  6. 1100
  7. 1150
  8. 235
  9. 200
  10. 3850
  11. 225
  12. 70
  13. 4900
  14. 390
  15. 4100
  16. 215
  17. 360
  18. 300
  19. 4750
  20. 400
  21. 1700
  22. 1900
  23. 1950
  24. 4700
  25. 305
  26. 395
  27. 600
  28. 160
  29. 110
  30. 200
  31. 435
  32. 150
  33. 395
  34. 490
  35. 125
  36. 370
  37. 3150
  38. 4000
  39. 1500
  40. 115

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