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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 94 · 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. 1.32 × 5 =
  2. 2.28 × 50 =
  3. 3.65 × 50 =
  4. 4.79 × 5 =
  5. 5.42 × 50 =
  6. 6.26 × 5 =
  7. 7.73 × 50 =
  8. 8.16 × 50 =
  9. 9.90 × 5 =
  10. 10.18 × 5 =
  11. 11.14 × 5 =
  12. 12.50 × 50 =
  13. 13.75 × 5 =
  14. 14.58 × 5 =
  15. 15.38 × 5 =
  16. 16.88 × 50 =
  17. 17.26 × 50 =
  18. 18.32 × 50 =
  19. 19.53 × 5 =
  20. 20.88 × 50 =
  21. 21.40 × 5 =
  22. 22.92 × 5 =
  23. 23.49 × 50 =
  24. 24.53 × 5 =
  25. 25.29 × 5 =
  26. 26.72 × 5 =
  27. 27.26 × 50 =
  28. 28.93 × 5 =
  29. 29.22 × 50 =
  30. 30.97 × 5 =
  31. 31.40 × 5 =
  32. 32.69 × 5 =
  33. 33.47 × 50 =
  34. 34.18 × 50 =
  35. 35.30 × 50 =
  36. 36.90 × 5 =
  37. 37.83 × 5 =
  38. 38.81 × 50 =
  39. 39.92 × 5 =
  40. 40.49 × 5 =

Answer key

  1. 160
  2. 1400
  3. 3250
  4. 395
  5. 2100
  6. 130
  7. 3650
  8. 800
  9. 450
  10. 90
  11. 70
  12. 2500
  13. 375
  14. 290
  15. 190
  16. 4400
  17. 1300
  18. 1600
  19. 265
  20. 4400
  21. 200
  22. 460
  23. 2450
  24. 265
  25. 145
  26. 360
  27. 1300
  28. 465
  29. 1100
  30. 485
  31. 200
  32. 345
  33. 2350
  34. 900
  35. 1500
  36. 450
  37. 415
  38. 4050
  39. 460
  40. 245

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