← × 5 and × 50: halve first lesson New set →

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 923 · 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. 1.68 × 5 =
  2. 2.19 × 5 =
  3. 3.84 × 50 =
  4. 4.94 × 50 =
  5. 5.16 × 5 =
  6. 6.16 × 5 =
  7. 7.64 × 5 =
  8. 8.93 × 50 =
  9. 9.90 × 50 =
  10. 10.37 × 50 =
  11. 11.38 × 50 =
  12. 12.75 × 50 =
  13. 13.38 × 5 =
  14. 14.74 × 50 =
  15. 15.48 × 50 =
  16. 16.38 × 50 =
  17. 17.77 × 50 =
  18. 18.93 × 5 =
  19. 19.64 × 50 =
  20. 20.90 × 5 =
  21. 21.45 × 5 =
  22. 22.65 × 50 =
  23. 23.80 × 5 =
  24. 24.71 × 5 =
  25. 25.33 × 50 =
  26. 26.81 × 5 =
  27. 27.70 × 50 =
  28. 28.82 × 5 =
  29. 29.60 × 50 =
  30. 30.71 × 50 =
  31. 31.36 × 50 =
  32. 32.66 × 50 =
  33. 33.90 × 50 =
  34. 34.36 × 50 =
  35. 35.82 × 5 =
  36. 36.51 × 5 =
  37. 37.96 × 5 =
  38. 38.35 × 50 =
  39. 39.40 × 5 =
  40. 40.19 × 5 =

Answer key

  1. 340
  2. 95
  3. 4200
  4. 4700
  5. 80
  6. 80
  7. 320
  8. 4650
  9. 4500
  10. 1850
  11. 1900
  12. 3750
  13. 190
  14. 3700
  15. 2400
  16. 1900
  17. 3850
  18. 465
  19. 3200
  20. 450
  21. 225
  22. 3250
  23. 400
  24. 355
  25. 1650
  26. 405
  27. 3500
  28. 410
  29. 3000
  30. 3550
  31. 1800
  32. 3300
  33. 4500
  34. 1800
  35. 410
  36. 255
  37. 480
  38. 1750
  39. 200
  40. 95

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