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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 532 · 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. 1.82 × 5 =
  2. 2.55 × 5 =
  3. 3.29 × 50 =
  4. 4.16 × 5 =
  5. 5.90 × 5 =
  6. 6.76 × 5 =
  7. 7.31 × 5 =
  8. 8.14 × 5 =
  9. 9.62 × 5 =
  10. 10.85 × 50 =
  11. 11.72 × 5 =
  12. 12.26 × 5 =
  13. 13.36 × 50 =
  14. 14.33 × 50 =
  15. 15.24 × 5 =
  16. 16.46 × 5 =
  17. 17.72 × 5 =
  18. 18.62 × 5 =
  19. 19.44 × 50 =
  20. 20.87 × 50 =
  21. 21.63 × 50 =
  22. 22.95 × 5 =
  23. 23.56 × 5 =
  24. 24.80 × 50 =
  25. 25.77 × 5 =
  26. 26.28 × 50 =
  27. 27.45 × 5 =
  28. 28.59 × 50 =
  29. 29.25 × 5 =
  30. 30.93 × 50 =
  31. 31.22 × 5 =
  32. 32.39 × 50 =
  33. 33.74 × 5 =
  34. 34.78 × 5 =
  35. 35.77 × 5 =
  36. 36.24 × 5 =
  37. 37.32 × 50 =
  38. 38.79 × 5 =
  39. 39.50 × 50 =
  40. 40.59 × 50 =

Answer key

  1. 410
  2. 275
  3. 1450
  4. 80
  5. 450
  6. 380
  7. 155
  8. 70
  9. 310
  10. 4250
  11. 360
  12. 130
  13. 1800
  14. 1650
  15. 120
  16. 230
  17. 360
  18. 310
  19. 2200
  20. 4350
  21. 3150
  22. 475
  23. 280
  24. 4000
  25. 385
  26. 1400
  27. 225
  28. 2950
  29. 125
  30. 4650
  31. 110
  32. 1950
  33. 370
  34. 390
  35. 385
  36. 120
  37. 1600
  38. 395
  39. 2500
  40. 2950

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