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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 463 · 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. 1.47 × 5 =
  2. 2.32 × 5 =
  3. 3.57 × 50 =
  4. 4.30 × 5 =
  5. 5.71 × 5 =
  6. 6.73 × 5 =
  7. 7.91 × 5 =
  8. 8.29 × 50 =
  9. 9.17 × 5 =
  10. 10.12 × 5 =
  11. 11.75 × 50 =
  12. 12.42 × 50 =
  13. 13.82 × 5 =
  14. 14.21 × 50 =
  15. 15.80 × 5 =
  16. 16.97 × 50 =
  17. 17.29 × 5 =
  18. 18.73 × 5 =
  19. 19.60 × 5 =
  20. 20.76 × 50 =
  21. 21.38 × 5 =
  22. 22.18 × 5 =
  23. 23.47 × 50 =
  24. 24.73 × 5 =
  25. 25.72 × 5 =
  26. 26.28 × 5 =
  27. 27.94 × 5 =
  28. 28.61 × 50 =
  29. 29.50 × 5 =
  30. 30.35 × 50 =
  31. 31.81 × 5 =
  32. 32.22 × 5 =
  33. 33.91 × 5 =
  34. 34.92 × 5 =
  35. 35.46 × 5 =
  36. 36.37 × 5 =
  37. 37.20 × 50 =
  38. 38.82 × 5 =
  39. 39.69 × 5 =
  40. 40.32 × 5 =

Answer key

  1. 235
  2. 160
  3. 2850
  4. 150
  5. 355
  6. 365
  7. 455
  8. 1450
  9. 85
  10. 60
  11. 3750
  12. 2100
  13. 410
  14. 1050
  15. 400
  16. 4850
  17. 145
  18. 365
  19. 300
  20. 3800
  21. 190
  22. 90
  23. 2350
  24. 365
  25. 360
  26. 140
  27. 470
  28. 3050
  29. 250
  30. 1750
  31. 405
  32. 110
  33. 455
  34. 460
  35. 230
  36. 185
  37. 1000
  38. 410
  39. 345
  40. 160

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