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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 543 · 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. 2.75 × 50 =
  3. 3.43 × 5 =
  4. 4.24 × 5 =
  5. 5.95 × 50 =
  6. 6.41 × 5 =
  7. 7.41 × 50 =
  8. 8.24 × 5 =
  9. 9.33 × 5 =
  10. 10.70 × 50 =
  11. 11.57 × 5 =
  12. 12.30 × 5 =
  13. 13.96 × 50 =
  14. 14.31 × 5 =
  15. 15.70 × 5 =
  16. 16.27 × 5 =
  17. 17.34 × 50 =
  18. 18.66 × 50 =
  19. 19.91 × 5 =
  20. 20.22 × 50 =
  21. 21.47 × 50 =
  22. 22.44 × 5 =
  23. 23.88 × 50 =
  24. 24.60 × 50 =
  25. 25.33 × 5 =
  26. 26.15 × 50 =
  27. 27.87 × 5 =
  28. 28.86 × 5 =
  29. 29.81 × 50 =
  30. 30.86 × 5 =
  31. 31.18 × 50 =
  32. 32.22 × 5 =
  33. 33.31 × 5 =
  34. 34.81 × 50 =
  35. 35.66 × 5 =
  36. 36.33 × 5 =
  37. 37.28 × 50 =
  38. 38.75 × 5 =
  39. 39.61 × 5 =
  40. 40.18 × 5 =

Answer key

  1. 225
  2. 3750
  3. 215
  4. 120
  5. 4750
  6. 205
  7. 2050
  8. 120
  9. 165
  10. 3500
  11. 285
  12. 150
  13. 4800
  14. 155
  15. 350
  16. 135
  17. 1700
  18. 3300
  19. 455
  20. 1100
  21. 2350
  22. 220
  23. 4400
  24. 3000
  25. 165
  26. 750
  27. 435
  28. 430
  29. 4050
  30. 430
  31. 900
  32. 110
  33. 155
  34. 4050
  35. 330
  36. 165
  37. 1400
  38. 375
  39. 305
  40. 90

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