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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 230 · 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. 2.28 × 50 =
  3. 3.98 × 5 =
  4. 4.86 × 50 =
  5. 5.60 × 5 =
  6. 6.21 × 5 =
  7. 7.87 × 50 =
  8. 8.75 × 50 =
  9. 9.73 × 5 =
  10. 10.77 × 5 =
  11. 11.43 × 50 =
  12. 12.25 × 5 =
  13. 13.53 × 5 =
  14. 14.16 × 50 =
  15. 15.35 × 5 =
  16. 16.24 × 5 =
  17. 17.84 × 50 =
  18. 18.82 × 50 =
  19. 19.64 × 50 =
  20. 20.88 × 50 =
  21. 21.17 × 5 =
  22. 22.57 × 50 =
  23. 23.20 × 50 =
  24. 24.49 × 5 =
  25. 25.97 × 5 =
  26. 26.32 × 5 =
  27. 27.94 × 5 =
  28. 28.61 × 5 =
  29. 29.61 × 5 =
  30. 30.51 × 5 =
  31. 31.50 × 5 =
  32. 32.13 × 5 =
  33. 33.27 × 50 =
  34. 34.53 × 50 =
  35. 35.16 × 50 =
  36. 36.84 × 5 =
  37. 37.50 × 50 =
  38. 38.97 × 5 =
  39. 39.47 × 5 =
  40. 40.12 × 5 =

Answer key

  1. 1400
  2. 1400
  3. 490
  4. 4300
  5. 300
  6. 105
  7. 4350
  8. 3750
  9. 365
  10. 385
  11. 2150
  12. 125
  13. 265
  14. 800
  15. 175
  16. 120
  17. 4200
  18. 4100
  19. 3200
  20. 4400
  21. 85
  22. 2850
  23. 1000
  24. 245
  25. 485
  26. 160
  27. 470
  28. 305
  29. 305
  30. 255
  31. 250
  32. 65
  33. 1350
  34. 2650
  35. 800
  36. 420
  37. 2500
  38. 485
  39. 235
  40. 60

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