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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 193 · 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. 1.18 × 5 =
  2. 2.67 × 5 =
  3. 3.39 × 5 =
  4. 4.64 × 50 =
  5. 5.47 × 50 =
  6. 6.20 × 5 =
  7. 7.62 × 50 =
  8. 8.77 × 50 =
  9. 9.22 × 50 =
  10. 10.94 × 5 =
  11. 11.89 × 5 =
  12. 12.22 × 5 =
  13. 13.77 × 50 =
  14. 14.66 × 5 =
  15. 15.73 × 5 =
  16. 16.80 × 5 =
  17. 17.32 × 5 =
  18. 18.21 × 5 =
  19. 19.63 × 50 =
  20. 20.95 × 5 =
  21. 21.87 × 5 =
  22. 22.54 × 50 =
  23. 23.62 × 50 =
  24. 24.20 × 5 =
  25. 25.73 × 50 =
  26. 26.32 × 50 =
  27. 27.96 × 5 =
  28. 28.26 × 50 =
  29. 29.55 × 50 =
  30. 30.36 × 5 =
  31. 31.14 × 50 =
  32. 32.14 × 50 =
  33. 33.71 × 50 =
  34. 34.21 × 5 =
  35. 35.76 × 5 =
  36. 36.96 × 50 =
  37. 37.28 × 5 =
  38. 38.32 × 5 =
  39. 39.26 × 50 =
  40. 40.32 × 5 =

Answer key

  1. 90
  2. 335
  3. 195
  4. 3200
  5. 2350
  6. 100
  7. 3100
  8. 3850
  9. 1100
  10. 470
  11. 445
  12. 110
  13. 3850
  14. 330
  15. 365
  16. 400
  17. 160
  18. 105
  19. 3150
  20. 475
  21. 435
  22. 2700
  23. 3100
  24. 100
  25. 3650
  26. 1600
  27. 480
  28. 1300
  29. 2750
  30. 180
  31. 700
  32. 700
  33. 3550
  34. 105
  35. 380
  36. 4800
  37. 140
  38. 160
  39. 1300
  40. 160

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