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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 478 · 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. 1.96 × 5 =
  2. 2.14 × 5 =
  3. 3.84 × 5 =
  4. 4.91 × 50 =
  5. 5.88 × 5 =
  6. 6.12 × 5 =
  7. 7.38 × 50 =
  8. 8.81 × 50 =
  9. 9.72 × 50 =
  10. 10.34 × 5 =
  11. 11.52 × 5 =
  12. 12.25 × 50 =
  13. 13.75 × 5 =
  14. 14.63 × 50 =
  15. 15.19 × 5 =
  16. 16.82 × 5 =
  17. 17.32 × 5 =
  18. 18.73 × 5 =
  19. 19.73 × 5 =
  20. 20.24 × 50 =
  21. 21.64 × 5 =
  22. 22.42 × 50 =
  23. 23.13 × 50 =
  24. 24.19 × 5 =
  25. 25.97 × 5 =
  26. 26.84 × 50 =
  27. 27.48 × 50 =
  28. 28.25 × 50 =
  29. 29.97 × 5 =
  30. 30.51 × 50 =
  31. 31.82 × 5 =
  32. 32.95 × 5 =
  33. 33.58 × 50 =
  34. 34.96 × 50 =
  35. 35.64 × 5 =
  36. 36.24 × 50 =
  37. 37.80 × 50 =
  38. 38.32 × 5 =
  39. 39.37 × 5 =
  40. 40.78 × 50 =

Answer key

  1. 480
  2. 70
  3. 420
  4. 4550
  5. 440
  6. 60
  7. 1900
  8. 4050
  9. 3600
  10. 170
  11. 260
  12. 1250
  13. 375
  14. 3150
  15. 95
  16. 410
  17. 160
  18. 365
  19. 365
  20. 1200
  21. 320
  22. 2100
  23. 650
  24. 95
  25. 485
  26. 4200
  27. 2400
  28. 1250
  29. 485
  30. 2550
  31. 410
  32. 475
  33. 2900
  34. 4800
  35. 320
  36. 1200
  37. 4000
  38. 160
  39. 185
  40. 3900

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