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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 563 · 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. 1.74 × 50 =
  2. 2.29 × 5 =
  3. 3.72 × 5 =
  4. 4.19 × 5 =
  5. 5.24 × 50 =
  6. 6.55 × 5 =
  7. 7.45 × 5 =
  8. 8.25 × 50 =
  9. 9.87 × 5 =
  10. 10.71 × 50 =
  11. 11.64 × 5 =
  12. 12.51 × 50 =
  13. 13.48 × 50 =
  14. 14.39 × 50 =
  15. 15.95 × 5 =
  16. 16.45 × 5 =
  17. 17.71 × 5 =
  18. 18.41 × 5 =
  19. 19.15 × 5 =
  20. 20.12 × 50 =
  21. 21.86 × 5 =
  22. 22.97 × 50 =
  23. 23.92 × 5 =
  24. 24.65 × 5 =
  25. 25.86 × 5 =
  26. 26.92 × 5 =
  27. 27.12 × 5 =
  28. 28.55 × 5 =
  29. 29.90 × 50 =
  30. 30.21 × 50 =
  31. 31.53 × 5 =
  32. 32.17 × 50 =
  33. 33.76 × 5 =
  34. 34.29 × 50 =
  35. 35.38 × 50 =
  36. 36.95 × 5 =
  37. 37.98 × 50 =
  38. 38.49 × 5 =
  39. 39.46 × 50 =
  40. 40.62 × 5 =

Answer key

  1. 3700
  2. 145
  3. 360
  4. 95
  5. 1200
  6. 275
  7. 225
  8. 1250
  9. 435
  10. 3550
  11. 320
  12. 2550
  13. 2400
  14. 1950
  15. 475
  16. 225
  17. 355
  18. 205
  19. 75
  20. 600
  21. 430
  22. 4850
  23. 460
  24. 325
  25. 430
  26. 460
  27. 60
  28. 275
  29. 4500
  30. 1050
  31. 265
  32. 850
  33. 380
  34. 1450
  35. 1900
  36. 475
  37. 4900
  38. 245
  39. 2300
  40. 310

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