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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 408 · 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. 2.68 × 50 =
  3. 3.85 × 50 =
  4. 4.60 × 5 =
  5. 5.32 × 5 =
  6. 6.34 × 50 =
  7. 7.57 × 5 =
  8. 8.88 × 50 =
  9. 9.21 × 50 =
  10. 10.12 × 50 =
  11. 11.51 × 50 =
  12. 12.45 × 5 =
  13. 13.89 × 5 =
  14. 14.79 × 50 =
  15. 15.45 × 5 =
  16. 16.97 × 5 =
  17. 17.34 × 50 =
  18. 18.25 × 50 =
  19. 19.81 × 50 =
  20. 20.72 × 50 =
  21. 21.44 × 5 =
  22. 22.87 × 5 =
  23. 23.60 × 5 =
  24. 24.24 × 50 =
  25. 25.68 × 5 =
  26. 26.29 × 5 =
  27. 27.34 × 50 =
  28. 28.45 × 5 =
  29. 29.93 × 5 =
  30. 30.20 × 50 =
  31. 31.79 × 50 =
  32. 32.91 × 50 =
  33. 33.93 × 5 =
  34. 34.60 × 50 =
  35. 35.41 × 50 =
  36. 36.92 × 50 =
  37. 37.64 × 5 =
  38. 38.19 × 50 =
  39. 39.94 × 5 =
  40. 40.87 × 50 =

Answer key

  1. 160
  2. 3400
  3. 4250
  4. 300
  5. 160
  6. 1700
  7. 285
  8. 4400
  9. 1050
  10. 600
  11. 2550
  12. 225
  13. 445
  14. 3950
  15. 225
  16. 485
  17. 1700
  18. 1250
  19. 4050
  20. 3600
  21. 220
  22. 435
  23. 300
  24. 1200
  25. 340
  26. 145
  27. 1700
  28. 225
  29. 465
  30. 1000
  31. 3950
  32. 4550
  33. 465
  34. 3000
  35. 2050
  36. 4600
  37. 320
  38. 950
  39. 470
  40. 4350

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