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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 989 · 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. 1.68 × 50 =
  2. 2.35 × 5 =
  3. 3.18 × 50 =
  4. 4.12 × 50 =
  5. 5.33 × 50 =
  6. 6.26 × 50 =
  7. 7.69 × 5 =
  8. 8.67 × 50 =
  9. 9.58 × 5 =
  10. 10.56 × 50 =
  11. 11.64 × 50 =
  12. 12.35 × 5 =
  13. 13.64 × 50 =
  14. 14.35 × 5 =
  15. 15.65 × 50 =
  16. 16.18 × 5 =
  17. 17.22 × 50 =
  18. 18.37 × 5 =
  19. 19.79 × 50 =
  20. 20.72 × 50 =
  21. 21.94 × 50 =
  22. 22.51 × 5 =
  23. 23.41 × 50 =
  24. 24.75 × 50 =
  25. 25.30 × 50 =
  26. 26.65 × 5 =
  27. 27.70 × 50 =
  28. 28.21 × 50 =
  29. 29.85 × 5 =
  30. 30.45 × 5 =
  31. 31.74 × 5 =
  32. 32.59 × 50 =
  33. 33.14 × 5 =
  34. 34.98 × 50 =
  35. 35.56 × 5 =
  36. 36.63 × 50 =
  37. 37.94 × 50 =
  38. 38.33 × 50 =
  39. 39.62 × 50 =
  40. 40.81 × 5 =

Answer key

  1. 3400
  2. 175
  3. 900
  4. 600
  5. 1650
  6. 1300
  7. 345
  8. 3350
  9. 290
  10. 2800
  11. 3200
  12. 175
  13. 3200
  14. 175
  15. 3250
  16. 90
  17. 1100
  18. 185
  19. 3950
  20. 3600
  21. 4700
  22. 255
  23. 2050
  24. 3750
  25. 1500
  26. 325
  27. 3500
  28. 1050
  29. 425
  30. 225
  31. 370
  32. 2950
  33. 70
  34. 4900
  35. 280
  36. 3150
  37. 4700
  38. 1650
  39. 3100
  40. 405

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