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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 176 · 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. 1.38 × 50 =
  2. 2.29 × 5 =
  3. 3.77 × 5 =
  4. 4.81 × 50 =
  5. 5.43 × 5 =
  6. 6.17 × 5 =
  7. 7.58 × 50 =
  8. 8.14 × 50 =
  9. 9.32 × 50 =
  10. 10.78 × 5 =
  11. 11.24 × 5 =
  12. 12.57 × 50 =
  13. 13.46 × 5 =
  14. 14.47 × 5 =
  15. 15.27 × 50 =
  16. 16.93 × 5 =
  17. 17.95 × 5 =
  18. 18.80 × 50 =
  19. 19.98 × 5 =
  20. 20.78 × 5 =
  21. 21.75 × 5 =
  22. 22.96 × 5 =
  23. 23.98 × 50 =
  24. 24.45 × 5 =
  25. 25.27 × 50 =
  26. 26.39 × 50 =
  27. 27.90 × 5 =
  28. 28.56 × 5 =
  29. 29.33 × 50 =
  30. 30.33 × 5 =
  31. 31.27 × 50 =
  32. 32.86 × 50 =
  33. 33.37 × 50 =
  34. 34.94 × 50 =
  35. 35.98 × 50 =
  36. 36.53 × 5 =
  37. 37.81 × 50 =
  38. 38.94 × 5 =
  39. 39.30 × 5 =
  40. 40.21 × 5 =

Answer key

  1. 1900
  2. 145
  3. 385
  4. 4050
  5. 215
  6. 85
  7. 2900
  8. 700
  9. 1600
  10. 390
  11. 120
  12. 2850
  13. 230
  14. 235
  15. 1350
  16. 465
  17. 475
  18. 4000
  19. 490
  20. 390
  21. 375
  22. 480
  23. 4900
  24. 225
  25. 1350
  26. 1950
  27. 450
  28. 280
  29. 1650
  30. 165
  31. 1350
  32. 4300
  33. 1850
  34. 4700
  35. 4900
  36. 265
  37. 4050
  38. 470
  39. 150
  40. 105

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