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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 636 · 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. 1.83 × 5 =
  2. 2.13 × 5 =
  3. 3.72 × 5 =
  4. 4.56 × 5 =
  5. 5.88 × 50 =
  6. 6.47 × 5 =
  7. 7.70 × 50 =
  8. 8.94 × 5 =
  9. 9.30 × 50 =
  10. 10.33 × 5 =
  11. 11.66 × 5 =
  12. 12.77 × 50 =
  13. 13.16 × 50 =
  14. 14.48 × 5 =
  15. 15.49 × 50 =
  16. 16.63 × 50 =
  17. 17.95 × 5 =
  18. 18.66 × 5 =
  19. 19.51 × 50 =
  20. 20.89 × 5 =
  21. 21.74 × 50 =
  22. 22.24 × 50 =
  23. 23.36 × 50 =
  24. 24.78 × 50 =
  25. 25.44 × 5 =
  26. 26.85 × 5 =
  27. 27.23 × 5 =
  28. 28.22 × 5 =
  29. 29.22 × 5 =
  30. 30.55 × 50 =
  31. 31.47 × 50 =
  32. 32.72 × 5 =
  33. 33.43 × 5 =
  34. 34.14 × 5 =
  35. 35.49 × 50 =
  36. 36.54 × 5 =
  37. 37.13 × 50 =
  38. 38.45 × 5 =
  39. 39.47 × 50 =
  40. 40.62 × 5 =

Answer key

  1. 415
  2. 65
  3. 360
  4. 280
  5. 4400
  6. 235
  7. 3500
  8. 470
  9. 1500
  10. 165
  11. 330
  12. 3850
  13. 800
  14. 240
  15. 2450
  16. 3150
  17. 475
  18. 330
  19. 2550
  20. 445
  21. 3700
  22. 1200
  23. 1800
  24. 3900
  25. 220
  26. 425
  27. 115
  28. 110
  29. 110
  30. 2750
  31. 2350
  32. 360
  33. 215
  34. 70
  35. 2450
  36. 270
  37. 650
  38. 225
  39. 2350
  40. 310

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