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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 628 · 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. 1.70 × 5 =
  2. 2.21 × 50 =
  3. 3.41 × 50 =
  4. 4.48 × 50 =
  5. 5.83 × 50 =
  6. 6.45 × 5 =
  7. 7.32 × 5 =
  8. 8.50 × 5 =
  9. 9.37 × 5 =
  10. 10.34 × 50 =
  11. 11.66 × 5 =
  12. 12.27 × 50 =
  13. 13.83 × 5 =
  14. 14.31 × 50 =
  15. 15.38 × 50 =
  16. 16.91 × 5 =
  17. 17.24 × 5 =
  18. 18.72 × 5 =
  19. 19.23 × 5 =
  20. 20.16 × 5 =
  21. 21.74 × 5 =
  22. 22.43 × 50 =
  23. 23.98 × 50 =
  24. 24.23 × 5 =
  25. 25.82 × 50 =
  26. 26.85 × 5 =
  27. 27.34 × 50 =
  28. 28.40 × 5 =
  29. 29.24 × 50 =
  30. 30.74 × 5 =
  31. 31.16 × 50 =
  32. 32.32 × 50 =
  33. 33.78 × 5 =
  34. 34.95 × 50 =
  35. 35.48 × 5 =
  36. 36.31 × 50 =
  37. 37.92 × 50 =
  38. 38.79 × 5 =
  39. 39.18 × 5 =
  40. 40.43 × 50 =

Answer key

  1. 350
  2. 1050
  3. 2050
  4. 2400
  5. 4150
  6. 225
  7. 160
  8. 250
  9. 185
  10. 1700
  11. 330
  12. 1350
  13. 415
  14. 1550
  15. 1900
  16. 455
  17. 120
  18. 360
  19. 115
  20. 80
  21. 370
  22. 2150
  23. 4900
  24. 115
  25. 4100
  26. 425
  27. 1700
  28. 200
  29. 1200
  30. 370
  31. 800
  32. 1600
  33. 390
  34. 4750
  35. 240
  36. 1550
  37. 4600
  38. 395
  39. 90
  40. 2150

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