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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 727 · 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. 1.70 × 50 =
  2. 2.82 × 5 =
  3. 3.58 × 5 =
  4. 4.70 × 50 =
  5. 5.22 × 50 =
  6. 6.60 × 50 =
  7. 7.77 × 5 =
  8. 8.97 × 5 =
  9. 9.55 × 50 =
  10. 10.17 × 50 =
  11. 11.30 × 50 =
  12. 12.67 × 50 =
  13. 13.67 × 50 =
  14. 14.60 × 50 =
  15. 15.80 × 5 =
  16. 16.83 × 5 =
  17. 17.86 × 5 =
  18. 18.51 × 50 =
  19. 19.60 × 50 =
  20. 20.75 × 50 =
  21. 21.15 × 50 =
  22. 22.51 × 5 =
  23. 23.87 × 50 =
  24. 24.77 × 5 =
  25. 25.37 × 50 =
  26. 26.36 × 50 =
  27. 27.63 × 5 =
  28. 28.54 × 5 =
  29. 29.74 × 50 =
  30. 30.63 × 5 =
  31. 31.40 × 5 =
  32. 32.30 × 50 =
  33. 33.80 × 5 =
  34. 34.48 × 5 =
  35. 35.81 × 5 =
  36. 36.21 × 5 =
  37. 37.75 × 5 =
  38. 38.98 × 5 =
  39. 39.44 × 5 =
  40. 40.81 × 5 =

Answer key

  1. 3500
  2. 410
  3. 290
  4. 3500
  5. 1100
  6. 3000
  7. 385
  8. 485
  9. 2750
  10. 850
  11. 1500
  12. 3350
  13. 3350
  14. 3000
  15. 400
  16. 415
  17. 430
  18. 2550
  19. 3000
  20. 3750
  21. 750
  22. 255
  23. 4350
  24. 385
  25. 1850
  26. 1800
  27. 315
  28. 270
  29. 3700
  30. 315
  31. 200
  32. 1500
  33. 400
  34. 240
  35. 405
  36. 105
  37. 375
  38. 490
  39. 220
  40. 405

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