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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 359 · 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. 1.16 × 50 =
  2. 2.97 × 50 =
  3. 3.25 × 50 =
  4. 4.76 × 5 =
  5. 5.19 × 5 =
  6. 6.83 × 5 =
  7. 7.75 × 5 =
  8. 8.63 × 5 =
  9. 9.91 × 50 =
  10. 10.12 × 50 =
  11. 11.42 × 50 =
  12. 12.20 × 5 =
  13. 13.14 × 5 =
  14. 14.43 × 50 =
  15. 15.91 × 50 =
  16. 16.60 × 5 =
  17. 17.28 × 5 =
  18. 18.18 × 50 =
  19. 19.46 × 5 =
  20. 20.18 × 50 =
  21. 21.52 × 50 =
  22. 22.97 × 50 =
  23. 23.14 × 5 =
  24. 24.68 × 5 =
  25. 25.94 × 5 =
  26. 26.72 × 5 =
  27. 27.37 × 5 =
  28. 28.61 × 5 =
  29. 29.40 × 50 =
  30. 30.66 × 5 =
  31. 31.98 × 50 =
  32. 32.44 × 50 =
  33. 33.47 × 5 =
  34. 34.98 × 50 =
  35. 35.67 × 5 =
  36. 36.16 × 5 =
  37. 37.58 × 5 =
  38. 38.62 × 50 =
  39. 39.68 × 50 =
  40. 40.85 × 5 =

Answer key

  1. 800
  2. 4850
  3. 1250
  4. 380
  5. 95
  6. 415
  7. 375
  8. 315
  9. 4550
  10. 600
  11. 2100
  12. 100
  13. 70
  14. 2150
  15. 4550
  16. 300
  17. 140
  18. 900
  19. 230
  20. 900
  21. 2600
  22. 4850
  23. 70
  24. 340
  25. 470
  26. 360
  27. 185
  28. 305
  29. 2000
  30. 330
  31. 4900
  32. 2200
  33. 235
  34. 4900
  35. 335
  36. 80
  37. 290
  38. 3100
  39. 3400
  40. 425

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