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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 200 · 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. 1.73 × 5 =
  2. 2.70 × 5 =
  3. 3.16 × 5 =
  4. 4.56 × 50 =
  5. 5.31 × 50 =
  6. 6.16 × 50 =
  7. 7.84 × 50 =
  8. 8.72 × 50 =
  9. 9.35 × 50 =
  10. 10.76 × 5 =
  11. 11.92 × 5 =
  12. 12.65 × 5 =
  13. 13.30 × 50 =
  14. 14.20 × 5 =
  15. 15.69 × 5 =
  16. 16.15 × 50 =
  17. 17.26 × 50 =
  18. 18.81 × 5 =
  19. 19.60 × 50 =
  20. 20.77 × 5 =
  21. 21.12 × 5 =
  22. 22.58 × 5 =
  23. 23.92 × 50 =
  24. 24.82 × 50 =
  25. 25.84 × 5 =
  26. 26.18 × 50 =
  27. 27.98 × 5 =
  28. 28.13 × 5 =
  29. 29.62 × 50 =
  30. 30.87 × 50 =
  31. 31.52 × 5 =
  32. 32.36 × 50 =
  33. 33.25 × 5 =
  34. 34.24 × 5 =
  35. 35.76 × 5 =
  36. 36.66 × 50 =
  37. 37.32 × 5 =
  38. 38.29 × 50 =
  39. 39.21 × 50 =
  40. 40.35 × 5 =

Answer key

  1. 365
  2. 350
  3. 80
  4. 2800
  5. 1550
  6. 800
  7. 4200
  8. 3600
  9. 1750
  10. 380
  11. 460
  12. 325
  13. 1500
  14. 100
  15. 345
  16. 750
  17. 1300
  18. 405
  19. 3000
  20. 385
  21. 60
  22. 290
  23. 4600
  24. 4100
  25. 420
  26. 900
  27. 490
  28. 65
  29. 3100
  30. 4350
  31. 260
  32. 1800
  33. 125
  34. 120
  35. 380
  36. 3300
  37. 160
  38. 1450
  39. 1050
  40. 175

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