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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 163 · 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. 1.82 × 5 =
  2. 2.55 × 5 =
  3. 3.88 × 5 =
  4. 4.79 × 5 =
  5. 5.94 × 50 =
  6. 6.45 × 50 =
  7. 7.56 × 5 =
  8. 8.71 × 5 =
  9. 9.89 × 5 =
  10. 10.88 × 5 =
  11. 11.94 × 50 =
  12. 12.31 × 50 =
  13. 13.24 × 5 =
  14. 14.63 × 5 =
  15. 15.20 × 5 =
  16. 16.12 × 50 =
  17. 17.30 × 50 =
  18. 18.80 × 5 =
  19. 19.90 × 5 =
  20. 20.95 × 50 =
  21. 21.23 × 5 =
  22. 22.79 × 50 =
  23. 23.68 × 50 =
  24. 24.79 × 5 =
  25. 25.43 × 50 =
  26. 26.15 × 50 =
  27. 27.12 × 5 =
  28. 28.97 × 50 =
  29. 29.27 × 50 =
  30. 30.24 × 5 =
  31. 31.53 × 5 =
  32. 32.42 × 5 =
  33. 33.68 × 5 =
  34. 34.69 × 50 =
  35. 35.30 × 50 =
  36. 36.41 × 5 =
  37. 37.84 × 5 =
  38. 38.31 × 5 =
  39. 39.23 × 50 =
  40. 40.88 × 5 =

Answer key

  1. 410
  2. 275
  3. 440
  4. 395
  5. 4700
  6. 2250
  7. 280
  8. 355
  9. 445
  10. 440
  11. 4700
  12. 1550
  13. 120
  14. 315
  15. 100
  16. 600
  17. 1500
  18. 400
  19. 450
  20. 4750
  21. 115
  22. 3950
  23. 3400
  24. 395
  25. 2150
  26. 750
  27. 60
  28. 4850
  29. 1350
  30. 120
  31. 265
  32. 210
  33. 340
  34. 3450
  35. 1500
  36. 205
  37. 420
  38. 155
  39. 1150
  40. 440

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