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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 337 · 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. 1.46 × 5 =
  2. 2.41 × 5 =
  3. 3.45 × 5 =
  4. 4.22 × 5 =
  5. 5.58 × 5 =
  6. 6.41 × 50 =
  7. 7.26 × 50 =
  8. 8.52 × 50 =
  9. 9.51 × 50 =
  10. 10.85 × 5 =
  11. 11.13 × 5 =
  12. 12.51 × 5 =
  13. 13.19 × 5 =
  14. 14.32 × 5 =
  15. 15.78 × 5 =
  16. 16.75 × 5 =
  17. 17.26 × 50 =
  18. 18.88 × 50 =
  19. 19.51 × 5 =
  20. 20.72 × 5 =
  21. 21.37 × 50 =
  22. 22.92 × 5 =
  23. 23.93 × 50 =
  24. 24.68 × 50 =
  25. 25.91 × 50 =
  26. 26.32 × 50 =
  27. 27.20 × 50 =
  28. 28.22 × 5 =
  29. 29.37 × 50 =
  30. 30.15 × 5 =
  31. 31.14 × 50 =
  32. 32.56 × 5 =
  33. 33.43 × 5 =
  34. 34.52 × 5 =
  35. 35.35 × 50 =
  36. 36.21 × 50 =
  37. 37.55 × 5 =
  38. 38.26 × 5 =
  39. 39.84 × 50 =
  40. 40.33 × 5 =

Answer key

  1. 230
  2. 205
  3. 225
  4. 110
  5. 290
  6. 2050
  7. 1300
  8. 2600
  9. 2550
  10. 425
  11. 65
  12. 255
  13. 95
  14. 160
  15. 390
  16. 375
  17. 1300
  18. 4400
  19. 255
  20. 360
  21. 1850
  22. 460
  23. 4650
  24. 3400
  25. 4550
  26. 1600
  27. 1000
  28. 110
  29. 1850
  30. 75
  31. 700
  32. 280
  33. 215
  34. 260
  35. 1750
  36. 1050
  37. 275
  38. 130
  39. 4200
  40. 165

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