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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 180 · 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. 1.28 × 5 =
  2. 2.88 × 50 =
  3. 3.37 × 50 =
  4. 4.39 × 50 =
  5. 5.66 × 5 =
  6. 6.87 × 50 =
  7. 7.28 × 50 =
  8. 8.53 × 5 =
  9. 9.52 × 50 =
  10. 10.56 × 50 =
  11. 11.73 × 5 =
  12. 12.30 × 5 =
  13. 13.75 × 50 =
  14. 14.73 × 5 =
  15. 15.25 × 5 =
  16. 16.84 × 5 =
  17. 17.64 × 50 =
  18. 18.27 × 50 =
  19. 19.49 × 5 =
  20. 20.88 × 50 =
  21. 21.12 × 50 =
  22. 22.68 × 5 =
  23. 23.73 × 5 =
  24. 24.41 × 5 =
  25. 25.13 × 5 =
  26. 26.54 × 5 =
  27. 27.55 × 5 =
  28. 28.30 × 5 =
  29. 29.86 × 5 =
  30. 30.90 × 50 =
  31. 31.98 × 5 =
  32. 32.54 × 5 =
  33. 33.76 × 50 =
  34. 34.91 × 50 =
  35. 35.28 × 5 =
  36. 36.20 × 5 =
  37. 37.24 × 50 =
  38. 38.24 × 5 =
  39. 39.84 × 50 =
  40. 40.38 × 5 =

Answer key

  1. 140
  2. 4400
  3. 1850
  4. 1950
  5. 330
  6. 4350
  7. 1400
  8. 265
  9. 2600
  10. 2800
  11. 365
  12. 150
  13. 3750
  14. 365
  15. 125
  16. 420
  17. 3200
  18. 1350
  19. 245
  20. 4400
  21. 600
  22. 340
  23. 365
  24. 205
  25. 65
  26. 270
  27. 275
  28. 150
  29. 430
  30. 4500
  31. 490
  32. 270
  33. 3800
  34. 4550
  35. 140
  36. 100
  37. 1200
  38. 120
  39. 4200
  40. 190

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