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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 440 · 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. 1.49 × 50 =
  2. 2.25 × 50 =
  3. 3.18 × 5 =
  4. 4.84 × 5 =
  5. 5.58 × 5 =
  6. 6.24 × 50 =
  7. 7.63 × 50 =
  8. 8.58 × 5 =
  9. 9.97 × 5 =
  10. 10.73 × 50 =
  11. 11.57 × 5 =
  12. 12.23 × 50 =
  13. 13.90 × 50 =
  14. 14.75 × 5 =
  15. 15.55 × 5 =
  16. 16.21 × 50 =
  17. 17.41 × 50 =
  18. 18.37 × 50 =
  19. 19.23 × 5 =
  20. 20.29 × 5 =
  21. 21.58 × 50 =
  22. 22.23 × 50 =
  23. 23.39 × 50 =
  24. 24.91 × 50 =
  25. 25.80 × 5 =
  26. 26.79 × 5 =
  27. 27.67 × 50 =
  28. 28.83 × 5 =
  29. 29.13 × 5 =
  30. 30.14 × 50 =
  31. 31.18 × 50 =
  32. 32.28 × 5 =
  33. 33.50 × 50 =
  34. 34.93 × 50 =
  35. 35.52 × 50 =
  36. 36.43 × 50 =
  37. 37.22 × 50 =
  38. 38.95 × 50 =
  39. 39.72 × 5 =
  40. 40.26 × 5 =

Answer key

  1. 2450
  2. 1250
  3. 90
  4. 420
  5. 290
  6. 1200
  7. 3150
  8. 290
  9. 485
  10. 3650
  11. 285
  12. 1150
  13. 4500
  14. 375
  15. 275
  16. 1050
  17. 2050
  18. 1850
  19. 115
  20. 145
  21. 2900
  22. 1150
  23. 1950
  24. 4550
  25. 400
  26. 395
  27. 3350
  28. 415
  29. 65
  30. 700
  31. 900
  32. 140
  33. 2500
  34. 4650
  35. 2600
  36. 2150
  37. 1100
  38. 4750
  39. 360
  40. 130

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