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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 52 · 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. 1.15 × 50 =
  2. 2.80 × 5 =
  3. 3.35 × 50 =
  4. 4.27 × 5 =
  5. 5.83 × 5 =
  6. 6.12 × 5 =
  7. 7.92 × 50 =
  8. 8.34 × 50 =
  9. 9.98 × 50 =
  10. 10.37 × 50 =
  11. 11.75 × 50 =
  12. 12.24 × 50 =
  13. 13.48 × 5 =
  14. 14.63 × 5 =
  15. 15.72 × 5 =
  16. 16.30 × 50 =
  17. 17.18 × 5 =
  18. 18.48 × 50 =
  19. 19.66 × 5 =
  20. 20.96 × 5 =
  21. 21.68 × 5 =
  22. 22.90 × 50 =
  23. 23.24 × 50 =
  24. 24.17 × 50 =
  25. 25.31 × 50 =
  26. 26.34 × 50 =
  27. 27.30 × 50 =
  28. 28.87 × 50 =
  29. 29.86 × 50 =
  30. 30.79 × 50 =
  31. 31.91 × 5 =
  32. 32.77 × 50 =
  33. 33.41 × 5 =
  34. 34.81 × 5 =
  35. 35.61 × 5 =
  36. 36.28 × 5 =
  37. 37.65 × 5 =
  38. 38.40 × 50 =
  39. 39.46 × 50 =
  40. 40.28 × 50 =

Answer key

  1. 750
  2. 400
  3. 1750
  4. 135
  5. 415
  6. 60
  7. 4600
  8. 1700
  9. 4900
  10. 1850
  11. 3750
  12. 1200
  13. 240
  14. 315
  15. 360
  16. 1500
  17. 90
  18. 2400
  19. 330
  20. 480
  21. 340
  22. 4500
  23. 1200
  24. 850
  25. 1550
  26. 1700
  27. 1500
  28. 4350
  29. 4300
  30. 3950
  31. 455
  32. 3850
  33. 205
  34. 405
  35. 305
  36. 140
  37. 325
  38. 2000
  39. 2300
  40. 1400

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