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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 442 · 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. 1.47 × 50 =
  2. 2.96 × 50 =
  3. 3.73 × 5 =
  4. 4.14 × 50 =
  5. 5.32 × 50 =
  6. 6.96 × 5 =
  7. 7.83 × 50 =
  8. 8.45 × 50 =
  9. 9.37 × 50 =
  10. 10.45 × 50 =
  11. 11.37 × 50 =
  12. 12.91 × 50 =
  13. 13.98 × 5 =
  14. 14.19 × 50 =
  15. 15.37 × 50 =
  16. 16.78 × 5 =
  17. 17.57 × 50 =
  18. 18.73 × 50 =
  19. 19.32 × 50 =
  20. 20.96 × 5 =
  21. 21.15 × 5 =
  22. 22.24 × 5 =
  23. 23.34 × 5 =
  24. 24.34 × 5 =
  25. 25.51 × 50 =
  26. 26.15 × 50 =
  27. 27.88 × 5 =
  28. 28.39 × 50 =
  29. 29.52 × 5 =
  30. 30.20 × 5 =
  31. 31.20 × 5 =
  32. 32.34 × 50 =
  33. 33.57 × 5 =
  34. 34.32 × 50 =
  35. 35.19 × 50 =
  36. 36.88 × 50 =
  37. 37.45 × 5 =
  38. 38.43 × 5 =
  39. 39.65 × 50 =
  40. 40.89 × 5 =

Answer key

  1. 2350
  2. 4800
  3. 365
  4. 700
  5. 1600
  6. 480
  7. 4150
  8. 2250
  9. 1850
  10. 2250
  11. 1850
  12. 4550
  13. 490
  14. 950
  15. 1850
  16. 390
  17. 2850
  18. 3650
  19. 1600
  20. 480
  21. 75
  22. 120
  23. 170
  24. 170
  25. 2550
  26. 750
  27. 440
  28. 1950
  29. 260
  30. 100
  31. 100
  32. 1700
  33. 285
  34. 1600
  35. 950
  36. 4400
  37. 225
  38. 215
  39. 3250
  40. 445

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