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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 963 · 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. 1.37 × 50 =
  2. 2.24 × 50 =
  3. 3.65 × 5 =
  4. 4.89 × 5 =
  5. 5.15 × 5 =
  6. 6.43 × 5 =
  7. 7.85 × 50 =
  8. 8.18 × 5 =
  9. 9.38 × 50 =
  10. 10.53 × 50 =
  11. 11.26 × 5 =
  12. 12.12 × 50 =
  13. 13.30 × 5 =
  14. 14.36 × 50 =
  15. 15.13 × 50 =
  16. 16.98 × 50 =
  17. 17.60 × 50 =
  18. 18.54 × 5 =
  19. 19.18 × 50 =
  20. 20.62 × 50 =
  21. 21.36 × 50 =
  22. 22.15 × 50 =
  23. 23.37 × 5 =
  24. 24.82 × 5 =
  25. 25.36 × 5 =
  26. 26.16 × 5 =
  27. 27.87 × 5 =
  28. 28.93 × 50 =
  29. 29.31 × 50 =
  30. 30.63 × 5 =
  31. 31.31 × 5 =
  32. 32.54 × 5 =
  33. 33.54 × 50 =
  34. 34.97 × 5 =
  35. 35.38 × 5 =
  36. 36.26 × 50 =
  37. 37.32 × 5 =
  38. 38.67 × 5 =
  39. 39.26 × 50 =
  40. 40.24 × 5 =

Answer key

  1. 1850
  2. 1200
  3. 325
  4. 445
  5. 75
  6. 215
  7. 4250
  8. 90
  9. 1900
  10. 2650
  11. 130
  12. 600
  13. 150
  14. 1800
  15. 650
  16. 4900
  17. 3000
  18. 270
  19. 900
  20. 3100
  21. 1800
  22. 750
  23. 185
  24. 410
  25. 180
  26. 80
  27. 435
  28. 4650
  29. 1550
  30. 315
  31. 155
  32. 270
  33. 2700
  34. 485
  35. 190
  36. 1300
  37. 160
  38. 335
  39. 1300
  40. 120

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