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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 554 · 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. 1.51 × 50 =
  2. 2.56 × 50 =
  3. 3.75 × 50 =
  4. 4.26 × 5 =
  5. 5.30 × 50 =
  6. 6.42 × 50 =
  7. 7.44 × 5 =
  8. 8.86 × 50 =
  9. 9.74 × 5 =
  10. 10.35 × 50 =
  11. 11.93 × 50 =
  12. 12.24 × 50 =
  13. 13.51 × 5 =
  14. 14.63 × 5 =
  15. 15.75 × 50 =
  16. 16.77 × 50 =
  17. 17.31 × 5 =
  18. 18.69 × 5 =
  19. 19.44 × 50 =
  20. 20.13 × 5 =
  21. 21.78 × 50 =
  22. 22.49 × 5 =
  23. 23.68 × 50 =
  24. 24.51 × 50 =
  25. 25.85 × 50 =
  26. 26.57 × 50 =
  27. 27.13 × 50 =
  28. 28.69 × 5 =
  29. 29.83 × 5 =
  30. 30.18 × 50 =
  31. 31.80 × 50 =
  32. 32.58 × 50 =
  33. 33.16 × 50 =
  34. 34.67 × 50 =
  35. 35.98 × 50 =
  36. 36.36 × 50 =
  37. 37.81 × 50 =
  38. 38.92 × 5 =
  39. 39.96 × 5 =
  40. 40.46 × 5 =

Answer key

  1. 2550
  2. 2800
  3. 3750
  4. 130
  5. 1500
  6. 2100
  7. 220
  8. 4300
  9. 370
  10. 1750
  11. 4650
  12. 1200
  13. 255
  14. 315
  15. 3750
  16. 3850
  17. 155
  18. 345
  19. 2200
  20. 65
  21. 3900
  22. 245
  23. 3400
  24. 2550
  25. 4250
  26. 2850
  27. 650
  28. 345
  29. 415
  30. 900
  31. 4000
  32. 2900
  33. 800
  34. 3350
  35. 4900
  36. 1800
  37. 4050
  38. 460
  39. 480
  40. 230

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