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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 265 · 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. 1.96 × 50 =
  2. 2.26 × 5 =
  3. 3.35 × 5 =
  4. 4.95 × 50 =
  5. 5.70 × 5 =
  6. 6.70 × 5 =
  7. 7.31 × 50 =
  8. 8.52 × 5 =
  9. 9.17 × 50 =
  10. 10.25 × 50 =
  11. 11.93 × 50 =
  12. 12.48 × 5 =
  13. 13.21 × 5 =
  14. 14.44 × 5 =
  15. 15.36 × 5 =
  16. 16.23 × 50 =
  17. 17.87 × 50 =
  18. 18.19 × 5 =
  19. 19.30 × 5 =
  20. 20.16 × 50 =
  21. 21.82 × 5 =
  22. 22.36 × 5 =
  23. 23.90 × 5 =
  24. 24.69 × 50 =
  25. 25.71 × 5 =
  26. 26.29 × 50 =
  27. 27.36 × 50 =
  28. 28.45 × 5 =
  29. 29.71 × 50 =
  30. 30.50 × 50 =
  31. 31.59 × 5 =
  32. 32.31 × 50 =
  33. 33.26 × 50 =
  34. 34.85 × 5 =
  35. 35.59 × 5 =
  36. 36.30 × 50 =
  37. 37.39 × 5 =
  38. 38.90 × 5 =
  39. 39.24 × 5 =
  40. 40.41 × 5 =

Answer key

  1. 4800
  2. 130
  3. 175
  4. 4750
  5. 350
  6. 350
  7. 1550
  8. 260
  9. 850
  10. 1250
  11. 4650
  12. 240
  13. 105
  14. 220
  15. 180
  16. 1150
  17. 4350
  18. 95
  19. 150
  20. 800
  21. 410
  22. 180
  23. 450
  24. 3450
  25. 355
  26. 1450
  27. 1800
  28. 225
  29. 3550
  30. 2500
  31. 295
  32. 1550
  33. 1300
  34. 425
  35. 295
  36. 1500
  37. 195
  38. 450
  39. 120
  40. 205

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