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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 387 · 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. 1.94 × 50 =
  2. 2.69 × 50 =
  3. 3.43 × 50 =
  4. 4.73 × 5 =
  5. 5.18 × 5 =
  6. 6.33 × 50 =
  7. 7.74 × 5 =
  8. 8.37 × 5 =
  9. 9.31 × 5 =
  10. 10.49 × 50 =
  11. 11.64 × 5 =
  12. 12.93 × 50 =
  13. 13.12 × 5 =
  14. 14.50 × 50 =
  15. 15.47 × 5 =
  16. 16.83 × 50 =
  17. 17.78 × 5 =
  18. 18.75 × 5 =
  19. 19.98 × 50 =
  20. 20.83 × 50 =
  21. 21.84 × 50 =
  22. 22.57 × 50 =
  23. 23.47 × 50 =
  24. 24.66 × 5 =
  25. 25.39 × 50 =
  26. 26.36 × 50 =
  27. 27.38 × 50 =
  28. 28.42 × 5 =
  29. 29.53 × 50 =
  30. 30.72 × 50 =
  31. 31.82 × 50 =
  32. 32.62 × 50 =
  33. 33.47 × 5 =
  34. 34.66 × 5 =
  35. 35.84 × 50 =
  36. 36.30 × 50 =
  37. 37.30 × 5 =
  38. 38.57 × 5 =
  39. 39.43 × 5 =
  40. 40.74 × 50 =

Answer key

  1. 4700
  2. 3450
  3. 2150
  4. 365
  5. 90
  6. 1650
  7. 370
  8. 185
  9. 155
  10. 2450
  11. 320
  12. 4650
  13. 60
  14. 2500
  15. 235
  16. 4150
  17. 390
  18. 375
  19. 4900
  20. 4150
  21. 4200
  22. 2850
  23. 2350
  24. 330
  25. 1950
  26. 1800
  27. 1900
  28. 210
  29. 2650
  30. 3600
  31. 4100
  32. 3100
  33. 235
  34. 330
  35. 4200
  36. 1500
  37. 150
  38. 285
  39. 215
  40. 3700

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