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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 175 · 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. 1.47 × 50 =
  2. 2.38 × 50 =
  3. 3.29 × 50 =
  4. 4.79 × 50 =
  5. 5.30 × 5 =
  6. 6.82 × 5 =
  7. 7.32 × 50 =
  8. 8.76 × 50 =
  9. 9.48 × 50 =
  10. 10.90 × 50 =
  11. 11.15 × 5 =
  12. 12.42 × 50 =
  13. 13.35 × 50 =
  14. 14.24 × 50 =
  15. 15.13 × 5 =
  16. 16.42 × 5 =
  17. 17.52 × 5 =
  18. 18.83 × 5 =
  19. 19.32 × 50 =
  20. 20.78 × 5 =
  21. 21.75 × 5 =
  22. 22.75 × 50 =
  23. 23.80 × 5 =
  24. 24.92 × 5 =
  25. 25.49 × 50 =
  26. 26.80 × 5 =
  27. 27.46 × 5 =
  28. 28.74 × 5 =
  29. 29.37 × 50 =
  30. 30.29 × 50 =
  31. 31.41 × 5 =
  32. 32.61 × 50 =
  33. 33.71 × 5 =
  34. 34.17 × 50 =
  35. 35.87 × 50 =
  36. 36.13 × 5 =
  37. 37.42 × 50 =
  38. 38.67 × 50 =
  39. 39.23 × 50 =
  40. 40.58 × 50 =

Answer key

  1. 2350
  2. 1900
  3. 1450
  4. 3950
  5. 150
  6. 410
  7. 1600
  8. 3800
  9. 2400
  10. 4500
  11. 75
  12. 2100
  13. 1750
  14. 1200
  15. 65
  16. 210
  17. 260
  18. 415
  19. 1600
  20. 390
  21. 375
  22. 3750
  23. 400
  24. 460
  25. 2450
  26. 400
  27. 230
  28. 370
  29. 1850
  30. 1450
  31. 205
  32. 3050
  33. 355
  34. 850
  35. 4350
  36. 65
  37. 2100
  38. 3350
  39. 1150
  40. 2900

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