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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 398 · 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. 1.29 × 50 =
  2. 2.12 × 50 =
  3. 3.75 × 5 =
  4. 4.82 × 5 =
  5. 5.18 × 50 =
  6. 6.60 × 5 =
  7. 7.19 × 50 =
  8. 8.97 × 50 =
  9. 9.61 × 50 =
  10. 10.41 × 5 =
  11. 11.31 × 50 =
  12. 12.37 × 5 =
  13. 13.45 × 5 =
  14. 14.37 × 5 =
  15. 15.43 × 50 =
  16. 16.96 × 5 =
  17. 17.72 × 50 =
  18. 18.28 × 5 =
  19. 19.98 × 50 =
  20. 20.97 × 50 =
  21. 21.59 × 50 =
  22. 22.57 × 5 =
  23. 23.90 × 50 =
  24. 24.55 × 50 =
  25. 25.32 × 5 =
  26. 26.86 × 5 =
  27. 27.19 × 5 =
  28. 28.54 × 5 =
  29. 29.49 × 5 =
  30. 30.56 × 5 =
  31. 31.14 × 50 =
  32. 32.66 × 5 =
  33. 33.78 × 5 =
  34. 34.18 × 5 =
  35. 35.61 × 50 =
  36. 36.31 × 50 =
  37. 37.87 × 5 =
  38. 38.38 × 50 =
  39. 39.26 × 5 =
  40. 40.85 × 50 =

Answer key

  1. 1450
  2. 600
  3. 375
  4. 410
  5. 900
  6. 300
  7. 950
  8. 4850
  9. 3050
  10. 205
  11. 1550
  12. 185
  13. 225
  14. 185
  15. 2150
  16. 480
  17. 3600
  18. 140
  19. 4900
  20. 4850
  21. 2950
  22. 285
  23. 4500
  24. 2750
  25. 160
  26. 430
  27. 95
  28. 270
  29. 245
  30. 280
  31. 700
  32. 330
  33. 390
  34. 90
  35. 3050
  36. 1550
  37. 435
  38. 1900
  39. 130
  40. 4250

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