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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 461 · 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. 1.16 × 50 =
  2. 2.84 × 5 =
  3. 3.39 × 50 =
  4. 4.56 × 5 =
  5. 5.23 × 50 =
  6. 6.77 × 5 =
  7. 7.84 × 50 =
  8. 8.89 × 50 =
  9. 9.19 × 5 =
  10. 10.71 × 50 =
  11. 11.21 × 50 =
  12. 12.42 × 50 =
  13. 13.84 × 5 =
  14. 14.29 × 50 =
  15. 15.30 × 50 =
  16. 16.33 × 5 =
  17. 17.15 × 50 =
  18. 18.77 × 5 =
  19. 19.58 × 5 =
  20. 20.19 × 50 =
  21. 21.66 × 5 =
  22. 22.39 × 5 =
  23. 23.50 × 5 =
  24. 24.43 × 50 =
  25. 25.49 × 5 =
  26. 26.71 × 50 =
  27. 27.93 × 5 =
  28. 28.77 × 5 =
  29. 29.52 × 5 =
  30. 30.71 × 50 =
  31. 31.22 × 5 =
  32. 32.93 × 50 =
  33. 33.20 × 5 =
  34. 34.30 × 5 =
  35. 35.23 × 5 =
  36. 36.56 × 50 =
  37. 37.62 × 50 =
  38. 38.85 × 50 =
  39. 39.22 × 50 =
  40. 40.87 × 5 =

Answer key

  1. 800
  2. 420
  3. 1950
  4. 280
  5. 1150
  6. 385
  7. 4200
  8. 4450
  9. 95
  10. 3550
  11. 1050
  12. 2100
  13. 420
  14. 1450
  15. 1500
  16. 165
  17. 750
  18. 385
  19. 290
  20. 950
  21. 330
  22. 195
  23. 250
  24. 2150
  25. 245
  26. 3550
  27. 465
  28. 385
  29. 260
  30. 3550
  31. 110
  32. 4650
  33. 100
  34. 150
  35. 115
  36. 2800
  37. 3100
  38. 4250
  39. 1100
  40. 435

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