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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 692 · 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. 1.46 × 50 =
  2. 2.15 × 5 =
  3. 3.82 × 5 =
  4. 4.47 × 5 =
  5. 5.14 × 5 =
  6. 6.81 × 5 =
  7. 7.52 × 50 =
  8. 8.86 × 50 =
  9. 9.74 × 5 =
  10. 10.32 × 50 =
  11. 11.22 × 5 =
  12. 12.75 × 5 =
  13. 13.31 × 50 =
  14. 14.78 × 5 =
  15. 15.60 × 5 =
  16. 16.17 × 50 =
  17. 17.75 × 50 =
  18. 18.17 × 5 =
  19. 19.12 × 5 =
  20. 20.91 × 5 =
  21. 21.71 × 50 =
  22. 22.80 × 5 =
  23. 23.28 × 5 =
  24. 24.47 × 5 =
  25. 25.74 × 5 =
  26. 26.71 × 5 =
  27. 27.78 × 5 =
  28. 28.60 × 50 =
  29. 29.15 × 5 =
  30. 30.46 × 5 =
  31. 31.62 × 5 =
  32. 32.14 × 5 =
  33. 33.94 × 5 =
  34. 34.20 × 50 =
  35. 35.35 × 5 =
  36. 36.59 × 50 =
  37. 37.68 × 5 =
  38. 38.70 × 50 =
  39. 39.73 × 5 =
  40. 40.25 × 5 =

Answer key

  1. 2300
  2. 75
  3. 410
  4. 235
  5. 70
  6. 405
  7. 2600
  8. 4300
  9. 370
  10. 1600
  11. 110
  12. 375
  13. 1550
  14. 390
  15. 300
  16. 850
  17. 3750
  18. 85
  19. 60
  20. 455
  21. 3550
  22. 400
  23. 140
  24. 235
  25. 370
  26. 355
  27. 390
  28. 3000
  29. 75
  30. 230
  31. 310
  32. 70
  33. 470
  34. 1000
  35. 175
  36. 2950
  37. 340
  38. 3500
  39. 365
  40. 125

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