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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 339 · 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. 1.24 × 5 =
  2. 2.91 × 5 =
  3. 3.91 × 5 =
  4. 4.37 × 50 =
  5. 5.94 × 5 =
  6. 6.81 × 50 =
  7. 7.29 × 5 =
  8. 8.20 × 5 =
  9. 9.67 × 50 =
  10. 10.34 × 50 =
  11. 11.67 × 50 =
  12. 12.41 × 50 =
  13. 13.83 × 50 =
  14. 14.58 × 50 =
  15. 15.13 × 50 =
  16. 16.78 × 5 =
  17. 17.25 × 5 =
  18. 18.74 × 5 =
  19. 19.80 × 50 =
  20. 20.98 × 5 =
  21. 21.28 × 5 =
  22. 22.18 × 5 =
  23. 23.38 × 50 =
  24. 24.88 × 5 =
  25. 25.29 × 50 =
  26. 26.40 × 5 =
  27. 27.94 × 50 =
  28. 28.94 × 50 =
  29. 29.88 × 5 =
  30. 30.72 × 5 =
  31. 31.51 × 5 =
  32. 32.86 × 5 =
  33. 33.97 × 5 =
  34. 34.65 × 50 =
  35. 35.81 × 5 =
  36. 36.98 × 5 =
  37. 37.29 × 5 =
  38. 38.65 × 5 =
  39. 39.23 × 5 =
  40. 40.79 × 5 =

Answer key

  1. 120
  2. 455
  3. 455
  4. 1850
  5. 470
  6. 4050
  7. 145
  8. 100
  9. 3350
  10. 1700
  11. 3350
  12. 2050
  13. 4150
  14. 2900
  15. 650
  16. 390
  17. 125
  18. 370
  19. 4000
  20. 490
  21. 140
  22. 90
  23. 1900
  24. 440
  25. 1450
  26. 200
  27. 4700
  28. 4700
  29. 440
  30. 360
  31. 255
  32. 430
  33. 485
  34. 3250
  35. 405
  36. 490
  37. 145
  38. 325
  39. 115
  40. 395

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