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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 485 · 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. 1.73 × 5 =
  2. 2.84 × 50 =
  3. 3.37 × 5 =
  4. 4.29 × 5 =
  5. 5.29 × 50 =
  6. 6.63 × 5 =
  7. 7.41 × 50 =
  8. 8.49 × 5 =
  9. 9.46 × 5 =
  10. 10.56 × 50 =
  11. 11.32 × 5 =
  12. 12.63 × 5 =
  13. 13.60 × 5 =
  14. 14.50 × 5 =
  15. 15.73 × 5 =
  16. 16.87 × 50 =
  17. 17.51 × 5 =
  18. 18.19 × 5 =
  19. 19.12 × 50 =
  20. 20.15 × 50 =
  21. 21.59 × 50 =
  22. 22.25 × 5 =
  23. 23.58 × 50 =
  24. 24.70 × 5 =
  25. 25.97 × 50 =
  26. 26.22 × 50 =
  27. 27.17 × 5 =
  28. 28.41 × 5 =
  29. 29.47 × 50 =
  30. 30.81 × 50 =
  31. 31.41 × 50 =
  32. 32.76 × 5 =
  33. 33.36 × 5 =
  34. 34.27 × 50 =
  35. 35.29 × 50 =
  36. 36.98 × 5 =
  37. 37.43 × 50 =
  38. 38.31 × 5 =
  39. 39.54 × 5 =
  40. 40.44 × 50 =

Answer key

  1. 365
  2. 4200
  3. 185
  4. 145
  5. 1450
  6. 315
  7. 2050
  8. 245
  9. 230
  10. 2800
  11. 160
  12. 315
  13. 300
  14. 250
  15. 365
  16. 4350
  17. 255
  18. 95
  19. 600
  20. 750
  21. 2950
  22. 125
  23. 2900
  24. 350
  25. 4850
  26. 1100
  27. 85
  28. 205
  29. 2350
  30. 4050
  31. 2050
  32. 380
  33. 180
  34. 1350
  35. 1450
  36. 490
  37. 2150
  38. 155
  39. 270
  40. 2200

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