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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 29 · 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. 1.16 × 5 =
  2. 2.18 × 5 =
  3. 3.66 × 5 =
  4. 4.84 × 5 =
  5. 5.31 × 50 =
  6. 6.13 × 5 =
  7. 7.96 × 50 =
  8. 8.27 × 50 =
  9. 9.15 × 50 =
  10. 10.27 × 5 =
  11. 11.25 × 5 =
  12. 12.72 × 5 =
  13. 13.74 × 50 =
  14. 14.14 × 50 =
  15. 15.85 × 5 =
  16. 16.84 × 5 =
  17. 17.80 × 50 =
  18. 18.73 × 50 =
  19. 19.18 × 50 =
  20. 20.36 × 50 =
  21. 21.98 × 5 =
  22. 22.61 × 5 =
  23. 23.56 × 5 =
  24. 24.52 × 5 =
  25. 25.39 × 50 =
  26. 26.53 × 5 =
  27. 27.81 × 5 =
  28. 28.59 × 50 =
  29. 29.62 × 50 =
  30. 30.78 × 5 =
  31. 31.47 × 50 =
  32. 32.80 × 50 =
  33. 33.51 × 5 =
  34. 34.41 × 5 =
  35. 35.57 × 50 =
  36. 36.92 × 5 =
  37. 37.85 × 5 =
  38. 38.92 × 5 =
  39. 39.21 × 50 =
  40. 40.46 × 50 =

Answer key

  1. 80
  2. 90
  3. 330
  4. 420
  5. 1550
  6. 65
  7. 4800
  8. 1350
  9. 750
  10. 135
  11. 125
  12. 360
  13. 3700
  14. 700
  15. 425
  16. 420
  17. 4000
  18. 3650
  19. 900
  20. 1800
  21. 490
  22. 305
  23. 280
  24. 260
  25. 1950
  26. 265
  27. 405
  28. 2950
  29. 3100
  30. 390
  31. 2350
  32. 4000
  33. 255
  34. 205
  35. 2850
  36. 460
  37. 425
  38. 460
  39. 1050
  40. 2300

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