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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 209 · 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. 1.54 × 5 =
  2. 2.49 × 50 =
  3. 3.87 × 50 =
  4. 4.87 × 50 =
  5. 5.76 × 50 =
  6. 6.64 × 50 =
  7. 7.63 × 50 =
  8. 8.49 × 50 =
  9. 9.62 × 5 =
  10. 10.30 × 50 =
  11. 11.51 × 50 =
  12. 12.26 × 5 =
  13. 13.23 × 5 =
  14. 14.20 × 50 =
  15. 15.22 × 50 =
  16. 16.90 × 5 =
  17. 17.45 × 5 =
  18. 18.27 × 50 =
  19. 19.66 × 50 =
  20. 20.86 × 5 =
  21. 21.59 × 50 =
  22. 22.82 × 5 =
  23. 23.42 × 5 =
  24. 24.61 × 50 =
  25. 25.88 × 5 =
  26. 26.39 × 5 =
  27. 27.79 × 5 =
  28. 28.14 × 5 =
  29. 29.95 × 5 =
  30. 30.39 × 5 =
  31. 31.15 × 5 =
  32. 32.64 × 50 =
  33. 33.71 × 5 =
  34. 34.40 × 5 =
  35. 35.39 × 50 =
  36. 36.53 × 5 =
  37. 37.74 × 50 =
  38. 38.14 × 5 =
  39. 39.59 × 50 =
  40. 40.66 × 50 =

Answer key

  1. 270
  2. 2450
  3. 4350
  4. 4350
  5. 3800
  6. 3200
  7. 3150
  8. 2450
  9. 310
  10. 1500
  11. 2550
  12. 130
  13. 115
  14. 1000
  15. 1100
  16. 450
  17. 225
  18. 1350
  19. 3300
  20. 430
  21. 2950
  22. 410
  23. 210
  24. 3050
  25. 440
  26. 195
  27. 395
  28. 70
  29. 475
  30. 195
  31. 75
  32. 3200
  33. 355
  34. 200
  35. 1950
  36. 265
  37. 3700
  38. 70
  39. 2950
  40. 3300

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