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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 578 · 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. 1.24 × 50 =
  2. 2.23 × 50 =
  3. 3.60 × 50 =
  4. 4.26 × 5 =
  5. 5.50 × 50 =
  6. 6.14 × 5 =
  7. 7.17 × 5 =
  8. 8.29 × 50 =
  9. 9.18 × 5 =
  10. 10.90 × 50 =
  11. 11.74 × 5 =
  12. 12.80 × 5 =
  13. 13.50 × 5 =
  14. 14.89 × 5 =
  15. 15.53 × 50 =
  16. 16.77 × 50 =
  17. 17.19 × 5 =
  18. 18.73 × 5 =
  19. 19.48 × 5 =
  20. 20.83 × 50 =
  21. 21.16 × 50 =
  22. 22.91 × 50 =
  23. 23.27 × 5 =
  24. 24.55 × 5 =
  25. 25.73 × 5 =
  26. 26.17 × 5 =
  27. 27.23 × 5 =
  28. 28.35 × 50 =
  29. 29.48 × 50 =
  30. 30.76 × 50 =
  31. 31.25 × 50 =
  32. 32.93 × 5 =
  33. 33.44 × 5 =
  34. 34.30 × 50 =
  35. 35.48 × 5 =
  36. 36.74 × 5 =
  37. 37.66 × 5 =
  38. 38.23 × 50 =
  39. 39.38 × 5 =
  40. 40.55 × 5 =

Answer key

  1. 1200
  2. 1150
  3. 3000
  4. 130
  5. 2500
  6. 70
  7. 85
  8. 1450
  9. 90
  10. 4500
  11. 370
  12. 400
  13. 250
  14. 445
  15. 2650
  16. 3850
  17. 95
  18. 365
  19. 240
  20. 4150
  21. 800
  22. 4550
  23. 135
  24. 275
  25. 365
  26. 85
  27. 115
  28. 1750
  29. 2400
  30. 3800
  31. 1250
  32. 465
  33. 220
  34. 1500
  35. 240
  36. 370
  37. 330
  38. 1150
  39. 190
  40. 275

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