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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 587 · 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. 1.21 × 50 =
  2. 2.14 × 5 =
  3. 3.52 × 5 =
  4. 4.72 × 50 =
  5. 5.35 × 50 =
  6. 6.74 × 5 =
  7. 7.14 × 50 =
  8. 8.67 × 50 =
  9. 9.49 × 50 =
  10. 10.96 × 5 =
  11. 11.93 × 5 =
  12. 12.78 × 50 =
  13. 13.80 × 5 =
  14. 14.62 × 5 =
  15. 15.20 × 50 =
  16. 16.19 × 50 =
  17. 17.18 × 5 =
  18. 18.60 × 50 =
  19. 19.90 × 5 =
  20. 20.60 × 50 =
  21. 21.75 × 50 =
  22. 22.70 × 50 =
  23. 23.94 × 5 =
  24. 24.20 × 5 =
  25. 25.28 × 50 =
  26. 26.74 × 5 =
  27. 27.98 × 50 =
  28. 28.75 × 5 =
  29. 29.26 × 50 =
  30. 30.80 × 5 =
  31. 31.95 × 5 =
  32. 32.35 × 5 =
  33. 33.52 × 5 =
  34. 34.45 × 5 =
  35. 35.77 × 50 =
  36. 36.56 × 50 =
  37. 37.89 × 5 =
  38. 38.35 × 50 =
  39. 39.57 × 50 =
  40. 40.94 × 50 =

Answer key

  1. 1050
  2. 70
  3. 260
  4. 3600
  5. 1750
  6. 370
  7. 700
  8. 3350
  9. 2450
  10. 480
  11. 465
  12. 3900
  13. 400
  14. 310
  15. 1000
  16. 950
  17. 90
  18. 3000
  19. 450
  20. 3000
  21. 3750
  22. 3500
  23. 470
  24. 100
  25. 1400
  26. 370
  27. 4900
  28. 375
  29. 1300
  30. 400
  31. 475
  32. 175
  33. 260
  34. 225
  35. 3850
  36. 2800
  37. 445
  38. 1750
  39. 2850
  40. 4700

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