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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 516 · 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. 1.31 × 5 =
  2. 2.89 × 50 =
  3. 3.61 × 50 =
  4. 4.80 × 50 =
  5. 5.14 × 5 =
  6. 6.72 × 5 =
  7. 7.20 × 50 =
  8. 8.53 × 5 =
  9. 9.87 × 5 =
  10. 10.12 × 50 =
  11. 11.77 × 5 =
  12. 12.79 × 5 =
  13. 13.19 × 5 =
  14. 14.63 × 5 =
  15. 15.52 × 5 =
  16. 16.45 × 50 =
  17. 17.85 × 5 =
  18. 18.70 × 5 =
  19. 19.92 × 50 =
  20. 20.79 × 50 =
  21. 21.45 × 5 =
  22. 22.77 × 50 =
  23. 23.86 × 50 =
  24. 24.62 × 5 =
  25. 25.84 × 5 =
  26. 26.86 × 50 =
  27. 27.21 × 5 =
  28. 28.96 × 5 =
  29. 29.49 × 5 =
  30. 30.25 × 50 =
  31. 31.31 × 5 =
  32. 32.21 × 50 =
  33. 33.33 × 5 =
  34. 34.84 × 50 =
  35. 35.92 × 50 =
  36. 36.98 × 50 =
  37. 37.91 × 5 =
  38. 38.62 × 50 =
  39. 39.18 × 5 =
  40. 40.18 × 50 =

Answer key

  1. 155
  2. 4450
  3. 3050
  4. 4000
  5. 70
  6. 360
  7. 1000
  8. 265
  9. 435
  10. 600
  11. 385
  12. 395
  13. 95
  14. 315
  15. 260
  16. 2250
  17. 425
  18. 350
  19. 4600
  20. 3950
  21. 225
  22. 3850
  23. 4300
  24. 310
  25. 420
  26. 4300
  27. 105
  28. 480
  29. 245
  30. 1250
  31. 155
  32. 1050
  33. 165
  34. 4200
  35. 4600
  36. 4900
  37. 455
  38. 3100
  39. 90
  40. 900

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