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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 696 · 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. 1.23 × 50 =
  2. 2.62 × 5 =
  3. 3.51 × 50 =
  4. 4.12 × 5 =
  5. 5.34 × 50 =
  6. 6.25 × 5 =
  7. 7.70 × 50 =
  8. 8.30 × 50 =
  9. 9.32 × 50 =
  10. 10.57 × 5 =
  11. 11.92 × 50 =
  12. 12.96 × 5 =
  13. 13.54 × 5 =
  14. 14.48 × 50 =
  15. 15.74 × 50 =
  16. 16.94 × 5 =
  17. 17.70 × 50 =
  18. 18.20 × 50 =
  19. 19.16 × 50 =
  20. 20.28 × 5 =
  21. 21.59 × 50 =
  22. 22.56 × 50 =
  23. 23.71 × 5 =
  24. 24.24 × 50 =
  25. 25.43 × 5 =
  26. 26.59 × 50 =
  27. 27.94 × 50 =
  28. 28.88 × 5 =
  29. 29.23 × 50 =
  30. 30.28 × 5 =
  31. 31.26 × 5 =
  32. 32.95 × 5 =
  33. 33.22 × 5 =
  34. 34.65 × 5 =
  35. 35.23 × 5 =
  36. 36.81 × 5 =
  37. 37.76 × 50 =
  38. 38.46 × 5 =
  39. 39.37 × 50 =
  40. 40.54 × 5 =

Answer key

  1. 1150
  2. 310
  3. 2550
  4. 60
  5. 1700
  6. 125
  7. 3500
  8. 1500
  9. 1600
  10. 285
  11. 4600
  12. 480
  13. 270
  14. 2400
  15. 3700
  16. 470
  17. 3500
  18. 1000
  19. 800
  20. 140
  21. 2950
  22. 2800
  23. 355
  24. 1200
  25. 215
  26. 2950
  27. 4700
  28. 440
  29. 1150
  30. 140
  31. 130
  32. 475
  33. 110
  34. 325
  35. 115
  36. 405
  37. 3800
  38. 230
  39. 1850
  40. 270

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