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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 662 · 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. 1.23 × 5 =
  2. 2.81 × 50 =
  3. 3.52 × 5 =
  4. 4.63 × 5 =
  5. 5.13 × 5 =
  6. 6.78 × 5 =
  7. 7.62 × 50 =
  8. 8.61 × 5 =
  9. 9.74 × 50 =
  10. 10.19 × 5 =
  11. 11.52 × 5 =
  12. 12.18 × 5 =
  13. 13.38 × 5 =
  14. 14.29 × 5 =
  15. 15.89 × 5 =
  16. 16.27 × 5 =
  17. 17.44 × 50 =
  18. 18.26 × 5 =
  19. 19.25 × 5 =
  20. 20.34 × 50 =
  21. 21.81 × 50 =
  22. 22.24 × 50 =
  23. 23.80 × 5 =
  24. 24.13 × 50 =
  25. 25.72 × 50 =
  26. 26.69 × 5 =
  27. 27.53 × 5 =
  28. 28.79 × 50 =
  29. 29.50 × 50 =
  30. 30.20 × 50 =
  31. 31.12 × 50 =
  32. 32.43 × 5 =
  33. 33.24 × 5 =
  34. 34.86 × 5 =
  35. 35.15 × 50 =
  36. 36.45 × 5 =
  37. 37.36 × 5 =
  38. 38.68 × 5 =
  39. 39.50 × 5 =
  40. 40.25 × 5 =

Answer key

  1. 115
  2. 4050
  3. 260
  4. 315
  5. 65
  6. 390
  7. 3100
  8. 305
  9. 3700
  10. 95
  11. 260
  12. 90
  13. 190
  14. 145
  15. 445
  16. 135
  17. 2200
  18. 130
  19. 125
  20. 1700
  21. 4050
  22. 1200
  23. 400
  24. 650
  25. 3600
  26. 345
  27. 265
  28. 3950
  29. 2500
  30. 1000
  31. 600
  32. 215
  33. 120
  34. 430
  35. 750
  36. 225
  37. 180
  38. 340
  39. 250
  40. 125

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