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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 33 · 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. 1.14 × 50 =
  2. 2.13 × 5 =
  3. 3.94 × 50 =
  4. 4.55 × 50 =
  5. 5.86 × 5 =
  6. 6.24 × 50 =
  7. 7.17 × 50 =
  8. 8.61 × 5 =
  9. 9.25 × 50 =
  10. 10.22 × 5 =
  11. 11.85 × 5 =
  12. 12.43 × 5 =
  13. 13.27 × 5 =
  14. 14.39 × 50 =
  15. 15.18 × 5 =
  16. 16.56 × 50 =
  17. 17.75 × 5 =
  18. 18.55 × 50 =
  19. 19.65 × 50 =
  20. 20.14 × 5 =
  21. 21.43 × 50 =
  22. 22.18 × 50 =
  23. 23.51 × 50 =
  24. 24.71 × 5 =
  25. 25.49 × 5 =
  26. 26.81 × 50 =
  27. 27.27 × 50 =
  28. 28.97 × 50 =
  29. 29.19 × 50 =
  30. 30.27 × 5 =
  31. 31.70 × 5 =
  32. 32.35 × 5 =
  33. 33.26 × 5 =
  34. 34.73 × 5 =
  35. 35.48 × 5 =
  36. 36.28 × 50 =
  37. 37.76 × 50 =
  38. 38.67 × 50 =
  39. 39.20 × 5 =
  40. 40.39 × 50 =

Answer key

  1. 700
  2. 65
  3. 4700
  4. 2750
  5. 430
  6. 1200
  7. 850
  8. 305
  9. 1250
  10. 110
  11. 425
  12. 215
  13. 135
  14. 1950
  15. 90
  16. 2800
  17. 375
  18. 2750
  19. 3250
  20. 70
  21. 2150
  22. 900
  23. 2550
  24. 355
  25. 245
  26. 4050
  27. 1350
  28. 4850
  29. 950
  30. 135
  31. 350
  32. 175
  33. 130
  34. 365
  35. 240
  36. 1400
  37. 3800
  38. 3350
  39. 100
  40. 1950

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