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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 227 · 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. 1.98 × 5 =
  2. 2.67 × 50 =
  3. 3.24 × 50 =
  4. 4.57 × 5 =
  5. 5.29 × 50 =
  6. 6.68 × 50 =
  7. 7.81 × 5 =
  8. 8.48 × 5 =
  9. 9.52 × 50 =
  10. 10.86 × 50 =
  11. 11.14 × 50 =
  12. 12.53 × 5 =
  13. 13.15 × 5 =
  14. 14.53 × 50 =
  15. 15.22 × 50 =
  16. 16.97 × 5 =
  17. 17.71 × 5 =
  18. 18.83 × 5 =
  19. 19.15 × 50 =
  20. 20.32 × 50 =
  21. 21.63 × 5 =
  22. 22.22 × 5 =
  23. 23.82 × 5 =
  24. 24.67 × 50 =
  25. 25.82 × 50 =
  26. 26.18 × 5 =
  27. 27.55 × 5 =
  28. 28.18 × 5 =
  29. 29.40 × 5 =
  30. 30.90 × 50 =
  31. 31.32 × 50 =
  32. 32.21 × 5 =
  33. 33.19 × 50 =
  34. 34.89 × 50 =
  35. 35.32 × 5 =
  36. 36.50 × 5 =
  37. 37.68 × 50 =
  38. 38.30 × 50 =
  39. 39.22 × 5 =
  40. 40.57 × 50 =

Answer key

  1. 490
  2. 3350
  3. 1200
  4. 285
  5. 1450
  6. 3400
  7. 405
  8. 240
  9. 2600
  10. 4300
  11. 700
  12. 265
  13. 75
  14. 2650
  15. 1100
  16. 485
  17. 355
  18. 415
  19. 750
  20. 1600
  21. 315
  22. 110
  23. 410
  24. 3350
  25. 4100
  26. 90
  27. 275
  28. 90
  29. 200
  30. 4500
  31. 1600
  32. 105
  33. 950
  34. 4450
  35. 160
  36. 250
  37. 3400
  38. 1500
  39. 110
  40. 2850

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