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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 862 · 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. 1.90 × 5 =
  2. 2.36 × 50 =
  3. 3.76 × 5 =
  4. 4.12 × 5 =
  5. 5.66 × 5 =
  6. 6.92 × 50 =
  7. 7.23 × 50 =
  8. 8.50 × 5 =
  9. 9.60 × 50 =
  10. 10.64 × 50 =
  11. 11.15 × 5 =
  12. 12.70 × 50 =
  13. 13.17 × 5 =
  14. 14.37 × 5 =
  15. 15.80 × 50 =
  16. 16.17 × 50 =
  17. 17.31 × 5 =
  18. 18.60 × 5 =
  19. 19.30 × 50 =
  20. 20.80 × 5 =
  21. 21.79 × 5 =
  22. 22.69 × 5 =
  23. 23.95 × 50 =
  24. 24.40 × 50 =
  25. 25.16 × 5 =
  26. 26.58 × 50 =
  27. 27.32 × 50 =
  28. 28.97 × 50 =
  29. 29.93 × 50 =
  30. 30.72 × 5 =
  31. 31.87 × 5 =
  32. 32.98 × 50 =
  33. 33.16 × 50 =
  34. 34.67 × 5 =
  35. 35.74 × 5 =
  36. 36.21 × 5 =
  37. 37.98 × 5 =
  38. 38.17 × 50 =
  39. 39.73 × 5 =
  40. 40.43 × 50 =

Answer key

  1. 450
  2. 1800
  3. 380
  4. 60
  5. 330
  6. 4600
  7. 1150
  8. 250
  9. 3000
  10. 3200
  11. 75
  12. 3500
  13. 85
  14. 185
  15. 4000
  16. 850
  17. 155
  18. 300
  19. 1500
  20. 400
  21. 395
  22. 345
  23. 4750
  24. 2000
  25. 80
  26. 2900
  27. 1600
  28. 4850
  29. 4650
  30. 360
  31. 435
  32. 4900
  33. 800
  34. 335
  35. 370
  36. 105
  37. 490
  38. 850
  39. 365
  40. 2150

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