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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 725 · 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. 2.47 × 5 =
  3. 3.88 × 5 =
  4. 4.35 × 50 =
  5. 5.34 × 5 =
  6. 6.36 × 5 =
  7. 7.41 × 50 =
  8. 8.30 × 50 =
  9. 9.35 × 50 =
  10. 10.60 × 5 =
  11. 11.37 × 5 =
  12. 12.62 × 5 =
  13. 13.25 × 5 =
  14. 14.18 × 50 =
  15. 15.61 × 50 =
  16. 16.18 × 5 =
  17. 17.43 × 5 =
  18. 18.52 × 50 =
  19. 19.96 × 50 =
  20. 20.88 × 5 =
  21. 21.56 × 50 =
  22. 22.12 × 50 =
  23. 23.63 × 50 =
  24. 24.82 × 5 =
  25. 25.54 × 5 =
  26. 26.26 × 50 =
  27. 27.62 × 50 =
  28. 28.65 × 5 =
  29. 29.54 × 50 =
  30. 30.72 × 50 =
  31. 31.83 × 50 =
  32. 32.66 × 50 =
  33. 33.76 × 50 =
  34. 34.87 × 5 =
  35. 35.32 × 5 =
  36. 36.57 × 5 =
  37. 37.13 × 5 =
  38. 38.42 × 50 =
  39. 39.74 × 5 =
  40. 40.18 × 5 =

Answer key

  1. 2350
  2. 235
  3. 440
  4. 1750
  5. 170
  6. 180
  7. 2050
  8. 1500
  9. 1750
  10. 300
  11. 185
  12. 310
  13. 125
  14. 900
  15. 3050
  16. 90
  17. 215
  18. 2600
  19. 4800
  20. 440
  21. 2800
  22. 600
  23. 3150
  24. 410
  25. 270
  26. 1300
  27. 3100
  28. 325
  29. 2700
  30. 3600
  31. 4150
  32. 3300
  33. 3800
  34. 435
  35. 160
  36. 285
  37. 65
  38. 2100
  39. 370
  40. 90

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