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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 105 · 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. 1.85 × 50 =
  2. 2.49 × 5 =
  3. 3.45 × 50 =
  4. 4.36 × 5 =
  5. 5.14 × 50 =
  6. 6.65 × 5 =
  7. 7.13 × 50 =
  8. 8.60 × 5 =
  9. 9.80 × 5 =
  10. 10.89 × 50 =
  11. 11.41 × 5 =
  12. 12.43 × 5 =
  13. 13.56 × 50 =
  14. 14.64 × 5 =
  15. 15.48 × 50 =
  16. 16.12 × 50 =
  17. 17.71 × 5 =
  18. 18.50 × 50 =
  19. 19.51 × 50 =
  20. 20.62 × 50 =
  21. 21.33 × 5 =
  22. 22.50 × 50 =
  23. 23.81 × 5 =
  24. 24.79 × 5 =
  25. 25.27 × 50 =
  26. 26.13 × 50 =
  27. 27.73 × 50 =
  28. 28.23 × 50 =
  29. 29.16 × 50 =
  30. 30.95 × 5 =
  31. 31.71 × 5 =
  32. 32.45 × 5 =
  33. 33.78 × 5 =
  34. 34.66 × 5 =
  35. 35.16 × 5 =
  36. 36.14 × 5 =
  37. 37.76 × 50 =
  38. 38.88 × 5 =
  39. 39.17 × 50 =
  40. 40.26 × 50 =

Answer key

  1. 4250
  2. 245
  3. 2250
  4. 180
  5. 700
  6. 325
  7. 650
  8. 300
  9. 400
  10. 4450
  11. 205
  12. 215
  13. 2800
  14. 320
  15. 2400
  16. 600
  17. 355
  18. 2500
  19. 2550
  20. 3100
  21. 165
  22. 2500
  23. 405
  24. 395
  25. 1350
  26. 650
  27. 3650
  28. 1150
  29. 800
  30. 475
  31. 355
  32. 225
  33. 390
  34. 330
  35. 80
  36. 70
  37. 3800
  38. 440
  39. 850
  40. 1300

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