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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 75 · 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. 1.85 × 50 =
  2. 2.90 × 50 =
  3. 3.45 × 50 =
  4. 4.72 × 5 =
  5. 5.89 × 5 =
  6. 6.24 × 50 =
  7. 7.12 × 50 =
  8. 8.39 × 5 =
  9. 9.97 × 5 =
  10. 10.45 × 50 =
  11. 11.65 × 5 =
  12. 12.33 × 50 =
  13. 13.32 × 50 =
  14. 14.62 × 50 =
  15. 15.29 × 50 =
  16. 16.90 × 5 =
  17. 17.72 × 5 =
  18. 18.45 × 50 =
  19. 19.81 × 50 =
  20. 20.67 × 5 =
  21. 21.55 × 50 =
  22. 22.37 × 5 =
  23. 23.73 × 5 =
  24. 24.86 × 50 =
  25. 25.75 × 5 =
  26. 26.81 × 50 =
  27. 27.97 × 5 =
  28. 28.57 × 5 =
  29. 29.61 × 50 =
  30. 30.52 × 5 =
  31. 31.18 × 50 =
  32. 32.73 × 50 =
  33. 33.52 × 5 =
  34. 34.84 × 50 =
  35. 35.28 × 50 =
  36. 36.45 × 5 =
  37. 37.30 × 5 =
  38. 38.85 × 50 =
  39. 39.35 × 5 =
  40. 40.49 × 50 =

Answer key

  1. 4250
  2. 4500
  3. 2250
  4. 360
  5. 445
  6. 1200
  7. 600
  8. 195
  9. 485
  10. 2250
  11. 325
  12. 1650
  13. 1600
  14. 3100
  15. 1450
  16. 450
  17. 360
  18. 2250
  19. 4050
  20. 335
  21. 2750
  22. 185
  23. 365
  24. 4300
  25. 375
  26. 4050
  27. 485
  28. 285
  29. 3050
  30. 260
  31. 900
  32. 3650
  33. 260
  34. 4200
  35. 1400
  36. 225
  37. 150
  38. 4250
  39. 175
  40. 2450

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