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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 394 · 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. 1.95 × 50 =
  2. 2.93 × 50 =
  3. 3.60 × 5 =
  4. 4.62 × 50 =
  5. 5.25 × 50 =
  6. 6.72 × 50 =
  7. 7.12 × 5 =
  8. 8.62 × 5 =
  9. 9.41 × 5 =
  10. 10.19 × 5 =
  11. 11.46 × 5 =
  12. 12.53 × 5 =
  13. 13.14 × 5 =
  14. 14.67 × 5 =
  15. 15.36 × 50 =
  16. 16.34 × 50 =
  17. 17.65 × 5 =
  18. 18.62 × 5 =
  19. 19.45 × 50 =
  20. 20.64 × 5 =
  21. 21.22 × 50 =
  22. 22.25 × 5 =
  23. 23.91 × 50 =
  24. 24.32 × 50 =
  25. 25.13 × 5 =
  26. 26.55 × 5 =
  27. 27.98 × 5 =
  28. 28.46 × 50 =
  29. 29.62 × 50 =
  30. 30.96 × 5 =
  31. 31.21 × 50 =
  32. 32.93 × 5 =
  33. 33.41 × 5 =
  34. 34.22 × 5 =
  35. 35.64 × 5 =
  36. 36.25 × 5 =
  37. 37.87 × 50 =
  38. 38.62 × 5 =
  39. 39.36 × 50 =
  40. 40.19 × 5 =

Answer key

  1. 4750
  2. 4650
  3. 300
  4. 3100
  5. 1250
  6. 3600
  7. 60
  8. 310
  9. 205
  10. 95
  11. 230
  12. 265
  13. 70
  14. 335
  15. 1800
  16. 1700
  17. 325
  18. 310
  19. 2250
  20. 320
  21. 1100
  22. 125
  23. 4550
  24. 1600
  25. 65
  26. 275
  27. 490
  28. 2300
  29. 3100
  30. 480
  31. 1050
  32. 465
  33. 205
  34. 110
  35. 320
  36. 125
  37. 4350
  38. 310
  39. 1800
  40. 95

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