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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 768 · 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. 1.29 × 50 =
  2. 2.69 × 5 =
  3. 3.22 × 50 =
  4. 4.39 × 50 =
  5. 5.21 × 5 =
  6. 6.38 × 50 =
  7. 7.26 × 5 =
  8. 8.75 × 5 =
  9. 9.57 × 50 =
  10. 10.89 × 50 =
  11. 11.48 × 5 =
  12. 12.39 × 5 =
  13. 13.41 × 5 =
  14. 14.84 × 5 =
  15. 15.46 × 50 =
  16. 16.82 × 5 =
  17. 17.45 × 5 =
  18. 18.73 × 50 =
  19. 19.83 × 5 =
  20. 20.44 × 50 =
  21. 21.16 × 50 =
  22. 22.16 × 5 =
  23. 23.78 × 50 =
  24. 24.58 × 5 =
  25. 25.42 × 5 =
  26. 26.54 × 50 =
  27. 27.76 × 5 =
  28. 28.79 × 5 =
  29. 29.40 × 5 =
  30. 30.69 × 50 =
  31. 31.90 × 5 =
  32. 32.19 × 5 =
  33. 33.15 × 5 =
  34. 34.30 × 5 =
  35. 35.30 × 50 =
  36. 36.51 × 50 =
  37. 37.94 × 50 =
  38. 38.74 × 5 =
  39. 39.52 × 50 =
  40. 40.48 × 5 =

Answer key

  1. 1450
  2. 345
  3. 1100
  4. 1950
  5. 105
  6. 1900
  7. 130
  8. 375
  9. 2850
  10. 4450
  11. 240
  12. 195
  13. 205
  14. 420
  15. 2300
  16. 410
  17. 225
  18. 3650
  19. 415
  20. 2200
  21. 800
  22. 80
  23. 3900
  24. 290
  25. 210
  26. 2700
  27. 380
  28. 395
  29. 200
  30. 3450
  31. 450
  32. 95
  33. 75
  34. 150
  35. 1500
  36. 2550
  37. 4700
  38. 370
  39. 2600
  40. 240

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