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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 39 · 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. 1.30 × 50 =
  2. 2.65 × 50 =
  3. 3.42 × 50 =
  4. 4.90 × 50 =
  5. 5.73 × 50 =
  6. 6.22 × 5 =
  7. 7.41 × 50 =
  8. 8.74 × 50 =
  9. 9.75 × 50 =
  10. 10.19 × 5 =
  11. 11.42 × 50 =
  12. 12.74 × 50 =
  13. 13.76 × 50 =
  14. 14.84 × 50 =
  15. 15.75 × 50 =
  16. 16.34 × 5 =
  17. 17.57 × 5 =
  18. 18.90 × 5 =
  19. 19.64 × 5 =
  20. 20.42 × 50 =
  21. 21.25 × 50 =
  22. 22.46 × 50 =
  23. 23.89 × 50 =
  24. 24.35 × 50 =
  25. 25.87 × 5 =
  26. 26.62 × 50 =
  27. 27.60 × 5 =
  28. 28.17 × 5 =
  29. 29.12 × 50 =
  30. 30.20 × 50 =
  31. 31.48 × 50 =
  32. 32.29 × 5 =
  33. 33.69 × 5 =
  34. 34.25 × 50 =
  35. 35.72 × 50 =
  36. 36.48 × 5 =
  37. 37.21 × 50 =
  38. 38.46 × 5 =
  39. 39.64 × 50 =
  40. 40.97 × 5 =

Answer key

  1. 1500
  2. 3250
  3. 2100
  4. 4500
  5. 3650
  6. 110
  7. 2050
  8. 3700
  9. 3750
  10. 95
  11. 2100
  12. 3700
  13. 3800
  14. 4200
  15. 3750
  16. 170
  17. 285
  18. 450
  19. 320
  20. 2100
  21. 1250
  22. 2300
  23. 4450
  24. 1750
  25. 435
  26. 3100
  27. 300
  28. 85
  29. 600
  30. 1000
  31. 2400
  32. 145
  33. 345
  34. 1250
  35. 3600
  36. 240
  37. 1050
  38. 230
  39. 3200
  40. 485

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths