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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 85 · 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 × 5 =
  2. 2.62 × 50 =
  3. 3.79 × 5 =
  4. 4.48 × 5 =
  5. 5.15 × 5 =
  6. 6.79 × 50 =
  7. 7.29 × 5 =
  8. 8.87 × 5 =
  9. 9.54 × 50 =
  10. 10.81 × 5 =
  11. 11.35 × 50 =
  12. 12.39 × 5 =
  13. 13.48 × 50 =
  14. 14.80 × 50 =
  15. 15.94 × 50 =
  16. 16.39 × 50 =
  17. 17.37 × 50 =
  18. 18.33 × 50 =
  19. 19.14 × 5 =
  20. 20.36 × 50 =
  21. 21.16 × 50 =
  22. 22.17 × 50 =
  23. 23.40 × 5 =
  24. 24.28 × 5 =
  25. 25.13 × 50 =
  26. 26.83 × 5 =
  27. 27.58 × 5 =
  28. 28.68 × 50 =
  29. 29.74 × 5 =
  30. 30.79 × 50 =
  31. 31.29 × 5 =
  32. 32.48 × 50 =
  33. 33.58 × 5 =
  34. 34.55 × 5 =
  35. 35.55 × 5 =
  36. 36.19 × 5 =
  37. 37.14 × 50 =
  38. 38.25 × 5 =
  39. 39.64 × 5 =
  40. 40.93 × 5 =

Answer key

  1. 470
  2. 3100
  3. 395
  4. 240
  5. 75
  6. 3950
  7. 145
  8. 435
  9. 2700
  10. 405
  11. 1750
  12. 195
  13. 2400
  14. 4000
  15. 4700
  16. 1950
  17. 1850
  18. 1650
  19. 70
  20. 1800
  21. 800
  22. 850
  23. 200
  24. 140
  25. 650
  26. 415
  27. 290
  28. 3400
  29. 370
  30. 3950
  31. 145
  32. 2400
  33. 290
  34. 275
  35. 275
  36. 95
  37. 700
  38. 125
  39. 320
  40. 465

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