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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 501 · 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. 1.17 × 50 =
  2. 2.32 × 50 =
  3. 3.90 × 5 =
  4. 4.26 × 50 =
  5. 5.27 × 5 =
  6. 6.38 × 50 =
  7. 7.24 × 5 =
  8. 8.41 × 5 =
  9. 9.17 × 5 =
  10. 10.55 × 5 =
  11. 11.36 × 5 =
  12. 12.51 × 5 =
  13. 13.73 × 50 =
  14. 14.60 × 5 =
  15. 15.44 × 5 =
  16. 16.84 × 50 =
  17. 17.40 × 5 =
  18. 18.47 × 50 =
  19. 19.15 × 50 =
  20. 20.42 × 5 =
  21. 21.94 × 50 =
  22. 22.58 × 50 =
  23. 23.82 × 5 =
  24. 24.60 × 50 =
  25. 25.54 × 50 =
  26. 26.52 × 5 =
  27. 27.43 × 5 =
  28. 28.76 × 50 =
  29. 29.27 × 5 =
  30. 30.49 × 50 =
  31. 31.91 × 50 =
  32. 32.66 × 50 =
  33. 33.33 × 5 =
  34. 34.18 × 5 =
  35. 35.78 × 5 =
  36. 36.36 × 50 =
  37. 37.48 × 50 =
  38. 38.35 × 5 =
  39. 39.29 × 50 =
  40. 40.46 × 5 =

Answer key

  1. 850
  2. 1600
  3. 450
  4. 1300
  5. 135
  6. 1900
  7. 120
  8. 205
  9. 85
  10. 275
  11. 180
  12. 255
  13. 3650
  14. 300
  15. 220
  16. 4200
  17. 200
  18. 2350
  19. 750
  20. 210
  21. 4700
  22. 2900
  23. 410
  24. 3000
  25. 2700
  26. 260
  27. 215
  28. 3800
  29. 135
  30. 2450
  31. 4550
  32. 3300
  33. 165
  34. 90
  35. 390
  36. 1800
  37. 2400
  38. 175
  39. 1450
  40. 230

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