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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 157 · 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. 1.25 × 5 =
  2. 2.73 × 5 =
  3. 3.14 × 50 =
  4. 4.60 × 50 =
  5. 5.41 × 5 =
  6. 6.60 × 5 =
  7. 7.34 × 50 =
  8. 8.41 × 5 =
  9. 9.45 × 5 =
  10. 10.91 × 50 =
  11. 11.76 × 5 =
  12. 12.15 × 5 =
  13. 13.17 × 5 =
  14. 14.80 × 5 =
  15. 15.94 × 5 =
  16. 16.56 × 5 =
  17. 17.78 × 50 =
  18. 18.12 × 5 =
  19. 19.82 × 50 =
  20. 20.63 × 50 =
  21. 21.61 × 50 =
  22. 22.96 × 50 =
  23. 23.88 × 50 =
  24. 24.38 × 50 =
  25. 25.87 × 5 =
  26. 26.14 × 5 =
  27. 27.64 × 5 =
  28. 28.84 × 5 =
  29. 29.28 × 5 =
  30. 30.13 × 5 =
  31. 31.57 × 5 =
  32. 32.16 × 5 =
  33. 33.53 × 5 =
  34. 34.14 × 50 =
  35. 35.28 × 50 =
  36. 36.40 × 50 =
  37. 37.30 × 5 =
  38. 38.46 × 50 =
  39. 39.54 × 50 =
  40. 40.77 × 5 =

Answer key

  1. 125
  2. 365
  3. 700
  4. 3000
  5. 205
  6. 300
  7. 1700
  8. 205
  9. 225
  10. 4550
  11. 380
  12. 75
  13. 85
  14. 400
  15. 470
  16. 280
  17. 3900
  18. 60
  19. 4100
  20. 3150
  21. 3050
  22. 4800
  23. 4400
  24. 1900
  25. 435
  26. 70
  27. 320
  28. 420
  29. 140
  30. 65
  31. 285
  32. 80
  33. 265
  34. 700
  35. 1400
  36. 2000
  37. 150
  38. 2300
  39. 2700
  40. 385

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