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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 245 · 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. 1.26 × 50 =
  2. 2.84 × 5 =
  3. 3.79 × 50 =
  4. 4.63 × 50 =
  5. 5.40 × 5 =
  6. 6.59 × 5 =
  7. 7.68 × 5 =
  8. 8.20 × 5 =
  9. 9.69 × 50 =
  10. 10.64 × 5 =
  11. 11.23 × 5 =
  12. 12.75 × 5 =
  13. 13.37 × 50 =
  14. 14.75 × 5 =
  15. 15.97 × 5 =
  16. 16.76 × 50 =
  17. 17.41 × 5 =
  18. 18.38 × 50 =
  19. 19.73 × 5 =
  20. 20.34 × 5 =
  21. 21.71 × 50 =
  22. 22.68 × 5 =
  23. 23.48 × 5 =
  24. 24.16 × 50 =
  25. 25.39 × 50 =
  26. 26.32 × 50 =
  27. 27.13 × 5 =
  28. 28.82 × 50 =
  29. 29.31 × 5 =
  30. 30.98 × 50 =
  31. 31.94 × 5 =
  32. 32.36 × 50 =
  33. 33.75 × 50 =
  34. 34.84 × 5 =
  35. 35.24 × 5 =
  36. 36.61 × 50 =
  37. 37.43 × 50 =
  38. 38.78 × 5 =
  39. 39.23 × 5 =
  40. 40.68 × 5 =

Answer key

  1. 1300
  2. 420
  3. 3950
  4. 3150
  5. 200
  6. 295
  7. 340
  8. 100
  9. 3450
  10. 320
  11. 115
  12. 375
  13. 1850
  14. 375
  15. 485
  16. 3800
  17. 205
  18. 1900
  19. 365
  20. 170
  21. 3550
  22. 340
  23. 240
  24. 800
  25. 1950
  26. 1600
  27. 65
  28. 4100
  29. 155
  30. 4900
  31. 470
  32. 1800
  33. 3750
  34. 420
  35. 120
  36. 3050
  37. 2150
  38. 390
  39. 115
  40. 340

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