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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 111 · 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. 1.44 × 50 =
  2. 2.22 × 5 =
  3. 3.27 × 5 =
  4. 4.73 × 5 =
  5. 5.20 × 5 =
  6. 6.94 × 50 =
  7. 7.95 × 50 =
  8. 8.81 × 50 =
  9. 9.55 × 5 =
  10. 10.70 × 50 =
  11. 11.88 × 5 =
  12. 12.32 × 50 =
  13. 13.88 × 50 =
  14. 14.75 × 50 =
  15. 15.62 × 50 =
  16. 16.56 × 5 =
  17. 17.61 × 50 =
  18. 18.23 × 50 =
  19. 19.28 × 5 =
  20. 20.19 × 5 =
  21. 21.85 × 5 =
  22. 22.69 × 50 =
  23. 23.40 × 50 =
  24. 24.50 × 50 =
  25. 25.24 × 5 =
  26. 26.73 × 5 =
  27. 27.30 × 5 =
  28. 28.89 × 50 =
  29. 29.35 × 50 =
  30. 30.20 × 5 =
  31. 31.76 × 50 =
  32. 32.62 × 5 =
  33. 33.16 × 50 =
  34. 34.28 × 5 =
  35. 35.65 × 5 =
  36. 36.30 × 5 =
  37. 37.92 × 50 =
  38. 38.38 × 50 =
  39. 39.94 × 50 =
  40. 40.69 × 5 =

Answer key

  1. 2200
  2. 110
  3. 135
  4. 365
  5. 100
  6. 4700
  7. 4750
  8. 4050
  9. 275
  10. 3500
  11. 440
  12. 1600
  13. 4400
  14. 3750
  15. 3100
  16. 280
  17. 3050
  18. 1150
  19. 140
  20. 95
  21. 425
  22. 3450
  23. 2000
  24. 2500
  25. 120
  26. 365
  27. 150
  28. 4450
  29. 1750
  30. 100
  31. 3800
  32. 310
  33. 800
  34. 140
  35. 325
  36. 150
  37. 4600
  38. 1900
  39. 4700
  40. 345

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