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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 961 · 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. 1.37 × 50 =
  2. 2.29 × 50 =
  3. 3.19 × 5 =
  4. 4.24 × 5 =
  5. 5.13 × 5 =
  6. 6.42 × 50 =
  7. 7.36 × 50 =
  8. 8.77 × 50 =
  9. 9.57 × 50 =
  10. 10.63 × 50 =
  11. 11.49 × 50 =
  12. 12.21 × 50 =
  13. 13.33 × 50 =
  14. 14.68 × 5 =
  15. 15.78 × 5 =
  16. 16.45 × 50 =
  17. 17.64 × 5 =
  18. 18.47 × 5 =
  19. 19.15 × 5 =
  20. 20.44 × 50 =
  21. 21.12 × 5 =
  22. 22.81 × 50 =
  23. 23.94 × 50 =
  24. 24.26 × 5 =
  25. 25.69 × 50 =
  26. 26.72 × 50 =
  27. 27.28 × 50 =
  28. 28.85 × 50 =
  29. 29.55 × 5 =
  30. 30.22 × 5 =
  31. 31.36 × 50 =
  32. 32.39 × 50 =
  33. 33.62 × 5 =
  34. 34.97 × 5 =
  35. 35.65 × 50 =
  36. 36.83 × 5 =
  37. 37.91 × 50 =
  38. 38.74 × 5 =
  39. 39.46 × 5 =
  40. 40.14 × 50 =

Answer key

  1. 1850
  2. 1450
  3. 95
  4. 120
  5. 65
  6. 2100
  7. 1800
  8. 3850
  9. 2850
  10. 3150
  11. 2450
  12. 1050
  13. 1650
  14. 340
  15. 390
  16. 2250
  17. 320
  18. 235
  19. 75
  20. 2200
  21. 60
  22. 4050
  23. 4700
  24. 130
  25. 3450
  26. 3600
  27. 1400
  28. 4250
  29. 275
  30. 110
  31. 1800
  32. 1950
  33. 310
  34. 485
  35. 3250
  36. 415
  37. 4550
  38. 370
  39. 230
  40. 700

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