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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 954 · 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. 1.28 × 50 =
  2. 2.47 × 50 =
  3. 3.44 × 5 =
  4. 4.24 × 5 =
  5. 5.98 × 50 =
  6. 6.26 × 50 =
  7. 7.24 × 50 =
  8. 8.64 × 50 =
  9. 9.88 × 50 =
  10. 10.79 × 50 =
  11. 11.47 × 5 =
  12. 12.71 × 50 =
  13. 13.30 × 50 =
  14. 14.97 × 50 =
  15. 15.76 × 5 =
  16. 16.33 × 5 =
  17. 17.81 × 5 =
  18. 18.51 × 5 =
  19. 19.27 × 50 =
  20. 20.49 × 50 =
  21. 21.86 × 50 =
  22. 22.84 × 5 =
  23. 23.34 × 50 =
  24. 24.36 × 5 =
  25. 25.83 × 5 =
  26. 26.12 × 50 =
  27. 27.35 × 5 =
  28. 28.84 × 5 =
  29. 29.58 × 5 =
  30. 30.18 × 5 =
  31. 31.14 × 5 =
  32. 32.83 × 50 =
  33. 33.93 × 50 =
  34. 34.72 × 50 =
  35. 35.89 × 50 =
  36. 36.85 × 50 =
  37. 37.97 × 50 =
  38. 38.16 × 5 =
  39. 39.12 × 5 =
  40. 40.41 × 5 =

Answer key

  1. 1400
  2. 2350
  3. 220
  4. 120
  5. 4900
  6. 1300
  7. 1200
  8. 3200
  9. 4400
  10. 3950
  11. 235
  12. 3550
  13. 1500
  14. 4850
  15. 380
  16. 165
  17. 405
  18. 255
  19. 1350
  20. 2450
  21. 4300
  22. 420
  23. 1700
  24. 180
  25. 415
  26. 600
  27. 175
  28. 420
  29. 290
  30. 90
  31. 70
  32. 4150
  33. 4650
  34. 3600
  35. 4450
  36. 4250
  37. 4850
  38. 80
  39. 60
  40. 205

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