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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 897 · 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. 1.21 × 5 =
  2. 2.33 × 50 =
  3. 3.14 × 50 =
  4. 4.16 × 5 =
  5. 5.25 × 5 =
  6. 6.14 × 50 =
  7. 7.51 × 50 =
  8. 8.81 × 50 =
  9. 9.68 × 50 =
  10. 10.85 × 5 =
  11. 11.12 × 50 =
  12. 12.49 × 5 =
  13. 13.78 × 5 =
  14. 14.56 × 50 =
  15. 15.16 × 5 =
  16. 16.78 × 50 =
  17. 17.22 × 5 =
  18. 18.21 × 50 =
  19. 19.74 × 50 =
  20. 20.78 × 5 =
  21. 21.62 × 5 =
  22. 22.24 × 5 =
  23. 23.24 × 50 =
  24. 24.27 × 50 =
  25. 25.79 × 50 =
  26. 26.89 × 5 =
  27. 27.56 × 5 =
  28. 28.98 × 50 =
  29. 29.24 × 5 =
  30. 30.33 × 5 =
  31. 31.38 × 5 =
  32. 32.78 × 50 =
  33. 33.12 × 5 =
  34. 34.89 × 50 =
  35. 35.58 × 50 =
  36. 36.56 × 5 =
  37. 37.28 × 5 =
  38. 38.77 × 50 =
  39. 39.23 × 50 =
  40. 40.12 × 50 =

Answer key

  1. 105
  2. 1650
  3. 700
  4. 80
  5. 125
  6. 700
  7. 2550
  8. 4050
  9. 3400
  10. 425
  11. 600
  12. 245
  13. 390
  14. 2800
  15. 80
  16. 3900
  17. 110
  18. 1050
  19. 3700
  20. 390
  21. 310
  22. 120
  23. 1200
  24. 1350
  25. 3950
  26. 445
  27. 280
  28. 4900
  29. 120
  30. 165
  31. 190
  32. 3900
  33. 60
  34. 4450
  35. 2900
  36. 280
  37. 140
  38. 3850
  39. 1150
  40. 600

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