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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 975 · 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. 1.34 × 5 =
  2. 2.87 × 5 =
  3. 3.15 × 5 =
  4. 4.27 × 5 =
  5. 5.34 × 50 =
  6. 6.45 × 5 =
  7. 7.31 × 5 =
  8. 8.74 × 50 =
  9. 9.17 × 50 =
  10. 10.23 × 50 =
  11. 11.29 × 5 =
  12. 12.26 × 5 =
  13. 13.38 × 5 =
  14. 14.42 × 5 =
  15. 15.43 × 5 =
  16. 16.28 × 5 =
  17. 17.63 × 50 =
  18. 18.98 × 50 =
  19. 19.33 × 50 =
  20. 20.59 × 50 =
  21. 21.73 × 5 =
  22. 22.58 × 5 =
  23. 23.89 × 5 =
  24. 24.95 × 50 =
  25. 25.21 × 5 =
  26. 26.34 × 5 =
  27. 27.56 × 5 =
  28. 28.32 × 50 =
  29. 29.12 × 5 =
  30. 30.83 × 50 =
  31. 31.93 × 5 =
  32. 32.64 × 50 =
  33. 33.93 × 50 =
  34. 34.64 × 50 =
  35. 35.62 × 50 =
  36. 36.77 × 50 =
  37. 37.81 × 5 =
  38. 38.36 × 50 =
  39. 39.83 × 5 =
  40. 40.87 × 50 =

Answer key

  1. 170
  2. 435
  3. 75
  4. 135
  5. 1700
  6. 225
  7. 155
  8. 3700
  9. 850
  10. 1150
  11. 145
  12. 130
  13. 190
  14. 210
  15. 215
  16. 140
  17. 3150
  18. 4900
  19. 1650
  20. 2950
  21. 365
  22. 290
  23. 445
  24. 4750
  25. 105
  26. 170
  27. 280
  28. 1600
  29. 60
  30. 4150
  31. 465
  32. 3200
  33. 4650
  34. 3200
  35. 3100
  36. 3850
  37. 405
  38. 1800
  39. 415
  40. 4350

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