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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 527 · 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. 1.69 × 50 =
  2. 2.39 × 5 =
  3. 3.85 × 5 =
  4. 4.35 × 50 =
  5. 5.14 × 50 =
  6. 6.52 × 5 =
  7. 7.22 × 5 =
  8. 8.52 × 50 =
  9. 9.26 × 5 =
  10. 10.90 × 50 =
  11. 11.31 × 5 =
  12. 12.39 × 50 =
  13. 13.81 × 50 =
  14. 14.21 × 5 =
  15. 15.16 × 50 =
  16. 16.56 × 5 =
  17. 17.74 × 5 =
  18. 18.34 × 50 =
  19. 19.85 × 5 =
  20. 20.50 × 50 =
  21. 21.12 × 5 =
  22. 22.40 × 5 =
  23. 23.42 × 5 =
  24. 24.54 × 5 =
  25. 25.39 × 5 =
  26. 26.56 × 5 =
  27. 27.89 × 5 =
  28. 28.83 × 50 =
  29. 29.20 × 5 =
  30. 30.42 × 5 =
  31. 31.36 × 50 =
  32. 32.18 × 50 =
  33. 33.23 × 5 =
  34. 34.51 × 50 =
  35. 35.28 × 50 =
  36. 36.83 × 50 =
  37. 37.35 × 50 =
  38. 38.91 × 5 =
  39. 39.96 × 50 =
  40. 40.43 × 50 =

Answer key

  1. 3450
  2. 195
  3. 425
  4. 1750
  5. 700
  6. 260
  7. 110
  8. 2600
  9. 130
  10. 4500
  11. 155
  12. 1950
  13. 4050
  14. 105
  15. 800
  16. 280
  17. 370
  18. 1700
  19. 425
  20. 2500
  21. 60
  22. 200
  23. 210
  24. 270
  25. 195
  26. 280
  27. 445
  28. 4150
  29. 100
  30. 210
  31. 1800
  32. 900
  33. 115
  34. 2550
  35. 1400
  36. 4150
  37. 1750
  38. 455
  39. 4800
  40. 2150

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