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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 916 · 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. 1.31 × 5 =
  2. 2.25 × 50 =
  3. 3.49 × 5 =
  4. 4.25 × 5 =
  5. 5.66 × 50 =
  6. 6.89 × 50 =
  7. 7.44 × 5 =
  8. 8.90 × 50 =
  9. 9.40 × 5 =
  10. 10.71 × 5 =
  11. 11.63 × 5 =
  12. 12.34 × 50 =
  13. 13.83 × 50 =
  14. 14.39 × 5 =
  15. 15.93 × 5 =
  16. 16.40 × 5 =
  17. 17.29 × 50 =
  18. 18.37 × 5 =
  19. 19.97 × 50 =
  20. 20.25 × 5 =
  21. 21.80 × 5 =
  22. 22.30 × 5 =
  23. 23.95 × 50 =
  24. 24.53 × 50 =
  25. 25.42 × 50 =
  26. 26.30 × 5 =
  27. 27.44 × 50 =
  28. 28.20 × 5 =
  29. 29.49 × 5 =
  30. 30.42 × 5 =
  31. 31.60 × 50 =
  32. 32.68 × 50 =
  33. 33.48 × 5 =
  34. 34.49 × 50 =
  35. 35.35 × 5 =
  36. 36.50 × 50 =
  37. 37.66 × 50 =
  38. 38.29 × 50 =
  39. 39.59 × 5 =
  40. 40.80 × 50 =

Answer key

  1. 155
  2. 1250
  3. 245
  4. 125
  5. 3300
  6. 4450
  7. 220
  8. 4500
  9. 200
  10. 355
  11. 315
  12. 1700
  13. 4150
  14. 195
  15. 465
  16. 200
  17. 1450
  18. 185
  19. 4850
  20. 125
  21. 400
  22. 150
  23. 4750
  24. 2650
  25. 2100
  26. 150
  27. 2200
  28. 100
  29. 245
  30. 210
  31. 3000
  32. 3400
  33. 240
  34. 2450
  35. 175
  36. 2500
  37. 3300
  38. 1450
  39. 295
  40. 4000

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