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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 353 · 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. 1.45 × 5 =
  2. 2.30 × 50 =
  3. 3.24 × 50 =
  4. 4.32 × 50 =
  5. 5.80 × 50 =
  6. 6.26 × 5 =
  7. 7.85 × 50 =
  8. 8.46 × 50 =
  9. 9.89 × 50 =
  10. 10.13 × 5 =
  11. 11.44 × 50 =
  12. 12.38 × 5 =
  13. 13.51 × 5 =
  14. 14.39 × 5 =
  15. 15.24 × 50 =
  16. 16.28 × 50 =
  17. 17.64 × 5 =
  18. 18.61 × 50 =
  19. 19.85 × 50 =
  20. 20.30 × 5 =
  21. 21.43 × 50 =
  22. 22.80 × 5 =
  23. 23.70 × 50 =
  24. 24.51 × 5 =
  25. 25.62 × 50 =
  26. 26.81 × 5 =
  27. 27.74 × 5 =
  28. 28.59 × 50 =
  29. 29.15 × 50 =
  30. 30.13 × 5 =
  31. 31.85 × 5 =
  32. 32.51 × 50 =
  33. 33.78 × 50 =
  34. 34.22 × 50 =
  35. 35.19 × 50 =
  36. 36.54 × 50 =
  37. 37.21 × 50 =
  38. 38.33 × 5 =
  39. 39.27 × 5 =
  40. 40.29 × 5 =

Answer key

  1. 225
  2. 1500
  3. 1200
  4. 1600
  5. 4000
  6. 130
  7. 4250
  8. 2300
  9. 4450
  10. 65
  11. 2200
  12. 190
  13. 255
  14. 195
  15. 1200
  16. 1400
  17. 320
  18. 3050
  19. 4250
  20. 150
  21. 2150
  22. 400
  23. 3500
  24. 255
  25. 3100
  26. 405
  27. 370
  28. 2950
  29. 750
  30. 65
  31. 425
  32. 2550
  33. 3900
  34. 1100
  35. 950
  36. 2700
  37. 1050
  38. 165
  39. 135
  40. 145

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