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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 30 · 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. 1.76 × 5 =
  2. 2.87 × 5 =
  3. 3.79 × 5 =
  4. 4.57 × 50 =
  5. 5.97 × 50 =
  6. 6.68 × 50 =
  7. 7.89 × 50 =
  8. 8.53 × 5 =
  9. 9.75 × 50 =
  10. 10.75 × 50 =
  11. 11.33 × 50 =
  12. 12.77 × 5 =
  13. 13.26 × 50 =
  14. 14.57 × 50 =
  15. 15.52 × 5 =
  16. 16.40 × 5 =
  17. 17.27 × 50 =
  18. 18.70 × 5 =
  19. 19.75 × 5 =
  20. 20.83 × 50 =
  21. 21.76 × 5 =
  22. 22.44 × 5 =
  23. 23.14 × 50 =
  24. 24.77 × 50 =
  25. 25.36 × 5 =
  26. 26.26 × 5 =
  27. 27.95 × 5 =
  28. 28.71 × 50 =
  29. 29.78 × 5 =
  30. 30.58 × 50 =
  31. 31.35 × 50 =
  32. 32.23 × 50 =
  33. 33.61 × 5 =
  34. 34.97 × 50 =
  35. 35.77 × 50 =
  36. 36.71 × 5 =
  37. 37.25 × 5 =
  38. 38.38 × 50 =
  39. 39.71 × 50 =
  40. 40.37 × 50 =

Answer key

  1. 380
  2. 435
  3. 395
  4. 2850
  5. 4850
  6. 3400
  7. 4450
  8. 265
  9. 3750
  10. 3750
  11. 1650
  12. 385
  13. 1300
  14. 2850
  15. 260
  16. 200
  17. 1350
  18. 350
  19. 375
  20. 4150
  21. 380
  22. 220
  23. 700
  24. 3850
  25. 180
  26. 130
  27. 475
  28. 3550
  29. 390
  30. 2900
  31. 1750
  32. 1150
  33. 305
  34. 4850
  35. 3850
  36. 355
  37. 125
  38. 1900
  39. 3550
  40. 1850

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