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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 922 · 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. 1.91 × 5 =
  2. 2.57 × 50 =
  3. 3.87 × 50 =
  4. 4.31 × 5 =
  5. 5.78 × 5 =
  6. 6.46 × 5 =
  7. 7.62 × 5 =
  8. 8.25 × 50 =
  9. 9.36 × 50 =
  10. 10.57 × 5 =
  11. 11.21 × 5 =
  12. 12.44 × 5 =
  13. 13.83 × 50 =
  14. 14.50 × 50 =
  15. 15.96 × 5 =
  16. 16.20 × 5 =
  17. 17.20 × 5 =
  18. 18.18 × 5 =
  19. 19.82 × 50 =
  20. 20.42 × 50 =
  21. 21.34 × 5 =
  22. 22.35 × 50 =
  23. 23.41 × 5 =
  24. 24.21 × 50 =
  25. 25.92 × 5 =
  26. 26.36 × 5 =
  27. 27.53 × 50 =
  28. 28.23 × 5 =
  29. 29.98 × 50 =
  30. 30.78 × 50 =
  31. 31.98 × 50 =
  32. 32.45 × 50 =
  33. 33.64 × 50 =
  34. 34.79 × 5 =
  35. 35.95 × 5 =
  36. 36.57 × 5 =
  37. 37.36 × 5 =
  38. 38.36 × 5 =
  39. 39.69 × 5 =
  40. 40.84 × 50 =

Answer key

  1. 455
  2. 2850
  3. 4350
  4. 155
  5. 390
  6. 230
  7. 310
  8. 1250
  9. 1800
  10. 285
  11. 105
  12. 220
  13. 4150
  14. 2500
  15. 480
  16. 100
  17. 100
  18. 90
  19. 4100
  20. 2100
  21. 170
  22. 1750
  23. 205
  24. 1050
  25. 460
  26. 180
  27. 2650
  28. 115
  29. 4900
  30. 3900
  31. 4900
  32. 2250
  33. 3200
  34. 395
  35. 475
  36. 285
  37. 180
  38. 180
  39. 345
  40. 4200

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