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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 434 · 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. 1.72 × 5 =
  2. 2.30 × 5 =
  3. 3.42 × 50 =
  4. 4.28 × 5 =
  5. 5.59 × 5 =
  6. 6.20 × 50 =
  7. 7.84 × 5 =
  8. 8.78 × 5 =
  9. 9.28 × 50 =
  10. 10.94 × 5 =
  11. 11.95 × 5 =
  12. 12.15 × 5 =
  13. 13.83 × 5 =
  14. 14.19 × 50 =
  15. 15.16 × 5 =
  16. 16.82 × 50 =
  17. 17.28 × 5 =
  18. 18.36 × 5 =
  19. 19.61 × 5 =
  20. 20.38 × 5 =
  21. 21.13 × 50 =
  22. 22.98 × 5 =
  23. 23.53 × 5 =
  24. 24.73 × 5 =
  25. 25.31 × 5 =
  26. 26.33 × 5 =
  27. 27.27 × 50 =
  28. 28.30 × 50 =
  29. 29.64 × 50 =
  30. 30.23 × 50 =
  31. 31.19 × 5 =
  32. 32.14 × 50 =
  33. 33.77 × 50 =
  34. 34.79 × 5 =
  35. 35.29 × 5 =
  36. 36.88 × 5 =
  37. 37.96 × 50 =
  38. 38.25 × 5 =
  39. 39.15 × 5 =
  40. 40.14 × 50 =

Answer key

  1. 360
  2. 150
  3. 2100
  4. 140
  5. 295
  6. 1000
  7. 420
  8. 390
  9. 1400
  10. 470
  11. 475
  12. 75
  13. 415
  14. 950
  15. 80
  16. 4100
  17. 140
  18. 180
  19. 305
  20. 190
  21. 650
  22. 490
  23. 265
  24. 365
  25. 155
  26. 165
  27. 1350
  28. 1500
  29. 3200
  30. 1150
  31. 95
  32. 700
  33. 3850
  34. 395
  35. 145
  36. 440
  37. 4800
  38. 125
  39. 75
  40. 700

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