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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 863 · 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. 1.34 × 5 =
  2. 2.33 × 5 =
  3. 3.93 × 50 =
  4. 4.33 × 5 =
  5. 5.50 × 50 =
  6. 6.45 × 5 =
  7. 7.36 × 50 =
  8. 8.15 × 5 =
  9. 9.88 × 5 =
  10. 10.25 × 5 =
  11. 11.32 × 5 =
  12. 12.14 × 5 =
  13. 13.16 × 50 =
  14. 14.91 × 50 =
  15. 15.72 × 50 =
  16. 16.24 × 50 =
  17. 17.74 × 50 =
  18. 18.21 × 50 =
  19. 19.37 × 5 =
  20. 20.36 × 5 =
  21. 21.62 × 5 =
  22. 22.66 × 5 =
  23. 23.75 × 5 =
  24. 24.14 × 5 =
  25. 25.90 × 5 =
  26. 26.38 × 50 =
  27. 27.98 × 5 =
  28. 28.52 × 5 =
  29. 29.21 × 50 =
  30. 30.59 × 5 =
  31. 31.43 × 50 =
  32. 32.76 × 5 =
  33. 33.54 × 50 =
  34. 34.40 × 5 =
  35. 35.19 × 5 =
  36. 36.66 × 50 =
  37. 37.63 × 50 =
  38. 38.18 × 5 =
  39. 39.34 × 5 =
  40. 40.72 × 5 =

Answer key

  1. 170
  2. 165
  3. 4650
  4. 165
  5. 2500
  6. 225
  7. 1800
  8. 75
  9. 440
  10. 125
  11. 160
  12. 70
  13. 800
  14. 4550
  15. 3600
  16. 1200
  17. 3700
  18. 1050
  19. 185
  20. 180
  21. 310
  22. 330
  23. 375
  24. 70
  25. 450
  26. 1900
  27. 490
  28. 260
  29. 1050
  30. 295
  31. 2150
  32. 380
  33. 2700
  34. 200
  35. 95
  36. 3300
  37. 3150
  38. 90
  39. 170
  40. 360

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