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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 747 · 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. 1.41 × 5 =
  2. 2.68 × 5 =
  3. 3.42 × 50 =
  4. 4.88 × 5 =
  5. 5.30 × 5 =
  6. 6.42 × 5 =
  7. 7.46 × 5 =
  8. 8.40 × 50 =
  9. 9.17 × 50 =
  10. 10.86 × 5 =
  11. 11.36 × 50 =
  12. 12.51 × 50 =
  13. 13.37 × 50 =
  14. 14.14 × 5 =
  15. 15.29 × 50 =
  16. 16.53 × 50 =
  17. 17.47 × 50 =
  18. 18.60 × 50 =
  19. 19.98 × 50 =
  20. 20.12 × 5 =
  21. 21.69 × 50 =
  22. 22.97 × 5 =
  23. 23.35 × 5 =
  24. 24.51 × 50 =
  25. 25.79 × 5 =
  26. 26.61 × 50 =
  27. 27.51 × 50 =
  28. 28.54 × 50 =
  29. 29.98 × 50 =
  30. 30.66 × 5 =
  31. 31.95 × 5 =
  32. 32.48 × 50 =
  33. 33.18 × 5 =
  34. 34.18 × 5 =
  35. 35.64 × 50 =
  36. 36.52 × 5 =
  37. 37.19 × 5 =
  38. 38.39 × 50 =
  39. 39.78 × 5 =
  40. 40.38 × 5 =

Answer key

  1. 205
  2. 340
  3. 2100
  4. 440
  5. 150
  6. 210
  7. 230
  8. 2000
  9. 850
  10. 430
  11. 1800
  12. 2550
  13. 1850
  14. 70
  15. 1450
  16. 2650
  17. 2350
  18. 3000
  19. 4900
  20. 60
  21. 3450
  22. 485
  23. 175
  24. 2550
  25. 395
  26. 3050
  27. 2550
  28. 2700
  29. 4900
  30. 330
  31. 475
  32. 2400
  33. 90
  34. 90
  35. 3200
  36. 260
  37. 95
  38. 1950
  39. 390
  40. 190

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