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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 789 · 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. 1.28 × 5 =
  2. 2.17 × 5 =
  3. 3.31 × 50 =
  4. 4.93 × 5 =
  5. 5.27 × 50 =
  6. 6.58 × 5 =
  7. 7.71 × 50 =
  8. 8.22 × 5 =
  9. 9.94 × 50 =
  10. 10.76 × 5 =
  11. 11.84 × 5 =
  12. 12.95 × 50 =
  13. 13.23 × 5 =
  14. 14.72 × 50 =
  15. 15.67 × 50 =
  16. 16.22 × 5 =
  17. 17.21 × 5 =
  18. 18.77 × 50 =
  19. 19.15 × 5 =
  20. 20.46 × 50 =
  21. 21.62 × 5 =
  22. 22.66 × 5 =
  23. 23.37 × 5 =
  24. 24.46 × 5 =
  25. 25.60 × 5 =
  26. 26.66 × 50 =
  27. 27.48 × 50 =
  28. 28.39 × 50 =
  29. 29.61 × 50 =
  30. 30.24 × 50 =
  31. 31.67 × 50 =
  32. 32.56 × 50 =
  33. 33.89 × 5 =
  34. 34.43 × 5 =
  35. 35.54 × 5 =
  36. 36.94 × 5 =
  37. 37.49 × 5 =
  38. 38.33 × 50 =
  39. 39.90 × 50 =
  40. 40.82 × 50 =

Answer key

  1. 140
  2. 85
  3. 1550
  4. 465
  5. 1350
  6. 290
  7. 3550
  8. 110
  9. 4700
  10. 380
  11. 420
  12. 4750
  13. 115
  14. 3600
  15. 3350
  16. 110
  17. 105
  18. 3850
  19. 75
  20. 2300
  21. 310
  22. 330
  23. 185
  24. 230
  25. 300
  26. 3300
  27. 2400
  28. 1950
  29. 3050
  30. 1200
  31. 3350
  32. 2800
  33. 445
  34. 215
  35. 270
  36. 470
  37. 245
  38. 1650
  39. 4500
  40. 4100

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