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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 236 · 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. 1.60 × 5 =
  2. 2.32 × 50 =
  3. 3.86 × 5 =
  4. 4.59 × 50 =
  5. 5.90 × 5 =
  6. 6.74 × 5 =
  7. 7.91 × 5 =
  8. 8.81 × 5 =
  9. 9.51 × 5 =
  10. 10.14 × 5 =
  11. 11.14 × 50 =
  12. 12.80 × 50 =
  13. 13.38 × 50 =
  14. 14.71 × 5 =
  15. 15.61 × 5 =
  16. 16.28 × 5 =
  17. 17.45 × 50 =
  18. 18.90 × 50 =
  19. 19.36 × 50 =
  20. 20.23 × 5 =
  21. 21.90 × 50 =
  22. 22.51 × 5 =
  23. 23.22 × 50 =
  24. 24.61 × 50 =
  25. 25.46 × 50 =
  26. 26.86 × 50 =
  27. 27.18 × 50 =
  28. 28.19 × 5 =
  29. 29.93 × 5 =
  30. 30.13 × 5 =
  31. 31.80 × 5 =
  32. 32.24 × 50 =
  33. 33.75 × 5 =
  34. 34.60 × 50 =
  35. 35.86 × 50 =
  36. 36.18 × 5 =
  37. 37.76 × 50 =
  38. 38.29 × 50 =
  39. 39.79 × 5 =
  40. 40.18 × 5 =

Answer key

  1. 300
  2. 1600
  3. 430
  4. 2950
  5. 450
  6. 370
  7. 455
  8. 405
  9. 255
  10. 70
  11. 700
  12. 4000
  13. 1900
  14. 355
  15. 305
  16. 140
  17. 2250
  18. 4500
  19. 1800
  20. 115
  21. 4500
  22. 255
  23. 1100
  24. 3050
  25. 2300
  26. 4300
  27. 900
  28. 95
  29. 465
  30. 65
  31. 400
  32. 1200
  33. 375
  34. 3000
  35. 4300
  36. 90
  37. 3800
  38. 1450
  39. 395
  40. 90

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