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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 123 · 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. 1.56 × 50 =
  2. 2.68 × 50 =
  3. 3.29 × 50 =
  4. 4.12 × 5 =
  5. 5.42 × 5 =
  6. 6.57 × 50 =
  7. 7.93 × 5 =
  8. 8.85 × 50 =
  9. 9.56 × 5 =
  10. 10.12 × 5 =
  11. 11.20 × 5 =
  12. 12.27 × 5 =
  13. 13.92 × 50 =
  14. 14.75 × 5 =
  15. 15.62 × 5 =
  16. 16.91 × 5 =
  17. 17.70 × 5 =
  18. 18.60 × 5 =
  19. 19.69 × 5 =
  20. 20.28 × 50 =
  21. 21.78 × 50 =
  22. 22.52 × 50 =
  23. 23.67 × 50 =
  24. 24.84 × 50 =
  25. 25.81 × 50 =
  26. 26.28 × 50 =
  27. 27.55 × 50 =
  28. 28.30 × 50 =
  29. 29.83 × 50 =
  30. 30.50 × 5 =
  31. 31.22 × 5 =
  32. 32.16 × 50 =
  33. 33.28 × 50 =
  34. 34.61 × 50 =
  35. 35.84 × 50 =
  36. 36.46 × 5 =
  37. 37.34 × 50 =
  38. 38.68 × 5 =
  39. 39.80 × 50 =
  40. 40.77 × 5 =

Answer key

  1. 2800
  2. 3400
  3. 1450
  4. 60
  5. 210
  6. 2850
  7. 465
  8. 4250
  9. 280
  10. 60
  11. 100
  12. 135
  13. 4600
  14. 375
  15. 310
  16. 455
  17. 350
  18. 300
  19. 345
  20. 1400
  21. 3900
  22. 2600
  23. 3350
  24. 4200
  25. 4050
  26. 1400
  27. 2750
  28. 1500
  29. 4150
  30. 250
  31. 110
  32. 800
  33. 1400
  34. 3050
  35. 4200
  36. 230
  37. 1700
  38. 340
  39. 4000
  40. 385

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