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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 82 · 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. 1.55 × 50 =
  2. 2.13 × 5 =
  3. 3.36 × 5 =
  4. 4.26 × 5 =
  5. 5.19 × 5 =
  6. 6.79 × 5 =
  7. 7.79 × 5 =
  8. 8.28 × 50 =
  9. 9.48 × 5 =
  10. 10.14 × 5 =
  11. 11.59 × 5 =
  12. 12.62 × 5 =
  13. 13.32 × 50 =
  14. 14.65 × 50 =
  15. 15.48 × 5 =
  16. 16.48 × 5 =
  17. 17.58 × 5 =
  18. 18.32 × 5 =
  19. 19.59 × 50 =
  20. 20.84 × 5 =
  21. 21.87 × 50 =
  22. 22.57 × 50 =
  23. 23.21 × 5 =
  24. 24.76 × 50 =
  25. 25.74 × 5 =
  26. 26.67 × 5 =
  27. 27.74 × 50 =
  28. 28.43 × 50 =
  29. 29.71 × 50 =
  30. 30.63 × 50 =
  31. 31.80 × 5 =
  32. 32.45 × 50 =
  33. 33.38 × 5 =
  34. 34.70 × 5 =
  35. 35.68 × 5 =
  36. 36.83 × 5 =
  37. 37.96 × 5 =
  38. 38.60 × 50 =
  39. 39.57 × 5 =
  40. 40.29 × 5 =

Answer key

  1. 2750
  2. 65
  3. 180
  4. 130
  5. 95
  6. 395
  7. 395
  8. 1400
  9. 240
  10. 70
  11. 295
  12. 310
  13. 1600
  14. 3250
  15. 240
  16. 240
  17. 290
  18. 160
  19. 2950
  20. 420
  21. 4350
  22. 2850
  23. 105
  24. 3800
  25. 370
  26. 335
  27. 3700
  28. 2150
  29. 3550
  30. 3150
  31. 400
  32. 2250
  33. 190
  34. 350
  35. 340
  36. 415
  37. 480
  38. 3000
  39. 285
  40. 145

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