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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 84 · 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. 1.20 × 5 =
  2. 2.36 × 5 =
  3. 3.39 × 50 =
  4. 4.63 × 5 =
  5. 5.40 × 5 =
  6. 6.32 × 50 =
  7. 7.97 × 5 =
  8. 8.86 × 50 =
  9. 9.50 × 50 =
  10. 10.51 × 5 =
  11. 11.78 × 5 =
  12. 12.92 × 50 =
  13. 13.81 × 5 =
  14. 14.19 × 5 =
  15. 15.81 × 5 =
  16. 16.82 × 5 =
  17. 17.63 × 50 =
  18. 18.51 × 5 =
  19. 19.62 × 50 =
  20. 20.42 × 50 =
  21. 21.71 × 5 =
  22. 22.93 × 50 =
  23. 23.43 × 5 =
  24. 24.58 × 50 =
  25. 25.14 × 5 =
  26. 26.47 × 5 =
  27. 27.34 × 50 =
  28. 28.66 × 5 =
  29. 29.56 × 50 =
  30. 30.31 × 50 =
  31. 31.28 × 5 =
  32. 32.44 × 5 =
  33. 33.90 × 50 =
  34. 34.29 × 5 =
  35. 35.51 × 5 =
  36. 36.86 × 5 =
  37. 37.20 × 50 =
  38. 38.16 × 5 =
  39. 39.53 × 5 =
  40. 40.17 × 5 =

Answer key

  1. 100
  2. 180
  3. 1950
  4. 315
  5. 200
  6. 1600
  7. 485
  8. 4300
  9. 2500
  10. 255
  11. 390
  12. 4600
  13. 405
  14. 95
  15. 405
  16. 410
  17. 3150
  18. 255
  19. 3100
  20. 2100
  21. 355
  22. 4650
  23. 215
  24. 2900
  25. 70
  26. 235
  27. 1700
  28. 330
  29. 2800
  30. 1550
  31. 140
  32. 220
  33. 4500
  34. 145
  35. 255
  36. 430
  37. 1000
  38. 80
  39. 265
  40. 85

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