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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 414 · 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. 1.98 × 50 =
  2. 2.38 × 50 =
  3. 3.94 × 5 =
  4. 4.13 × 50 =
  5. 5.95 × 5 =
  6. 6.92 × 50 =
  7. 7.40 × 5 =
  8. 8.93 × 5 =
  9. 9.17 × 50 =
  10. 10.78 × 5 =
  11. 11.51 × 50 =
  12. 12.56 × 5 =
  13. 13.22 × 50 =
  14. 14.17 × 5 =
  15. 15.92 × 50 =
  16. 16.97 × 5 =
  17. 17.40 × 5 =
  18. 18.40 × 5 =
  19. 19.84 × 5 =
  20. 20.46 × 50 =
  21. 21.15 × 5 =
  22. 22.20 × 5 =
  23. 23.27 × 5 =
  24. 24.28 × 5 =
  25. 25.94 × 5 =
  26. 26.47 × 5 =
  27. 27.47 × 50 =
  28. 28.61 × 5 =
  29. 29.13 × 5 =
  30. 30.70 × 5 =
  31. 31.72 × 50 =
  32. 32.59 × 50 =
  33. 33.36 × 50 =
  34. 34.38 × 5 =
  35. 35.14 × 50 =
  36. 36.32 × 5 =
  37. 37.32 × 5 =
  38. 38.69 × 5 =
  39. 39.45 × 5 =
  40. 40.89 × 5 =

Answer key

  1. 4900
  2. 1900
  3. 470
  4. 650
  5. 475
  6. 4600
  7. 200
  8. 465
  9. 850
  10. 390
  11. 2550
  12. 280
  13. 1100
  14. 85
  15. 4600
  16. 485
  17. 200
  18. 200
  19. 420
  20. 2300
  21. 75
  22. 100
  23. 135
  24. 140
  25. 470
  26. 235
  27. 2350
  28. 305
  29. 65
  30. 350
  31. 3600
  32. 2950
  33. 1800
  34. 190
  35. 700
  36. 160
  37. 160
  38. 345
  39. 225
  40. 445

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