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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 600 · 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. 1.88 × 50 =
  2. 2.54 × 50 =
  3. 3.27 × 50 =
  4. 4.46 × 50 =
  5. 5.29 × 50 =
  6. 6.51 × 5 =
  7. 7.96 × 5 =
  8. 8.64 × 5 =
  9. 9.90 × 5 =
  10. 10.53 × 5 =
  11. 11.55 × 50 =
  12. 12.47 × 5 =
  13. 13.48 × 5 =
  14. 14.27 × 5 =
  15. 15.65 × 5 =
  16. 16.49 × 5 =
  17. 17.37 × 5 =
  18. 18.14 × 5 =
  19. 19.57 × 5 =
  20. 20.22 × 5 =
  21. 21.42 × 50 =
  22. 22.75 × 5 =
  23. 23.13 × 5 =
  24. 24.30 × 5 =
  25. 25.17 × 5 =
  26. 26.79 × 5 =
  27. 27.22 × 5 =
  28. 28.26 × 50 =
  29. 29.24 × 50 =
  30. 30.23 × 5 =
  31. 31.12 × 5 =
  32. 32.22 × 50 =
  33. 33.50 × 5 =
  34. 34.56 × 5 =
  35. 35.31 × 5 =
  36. 36.65 × 50 =
  37. 37.30 × 50 =
  38. 38.85 × 50 =
  39. 39.25 × 50 =
  40. 40.68 × 50 =

Answer key

  1. 4400
  2. 2700
  3. 1350
  4. 2300
  5. 1450
  6. 255
  7. 480
  8. 320
  9. 450
  10. 265
  11. 2750
  12. 235
  13. 240
  14. 135
  15. 325
  16. 245
  17. 185
  18. 70
  19. 285
  20. 110
  21. 2100
  22. 375
  23. 65
  24. 150
  25. 85
  26. 395
  27. 110
  28. 1300
  29. 1200
  30. 115
  31. 60
  32. 1100
  33. 250
  34. 280
  35. 155
  36. 3250
  37. 1500
  38. 4250
  39. 1250
  40. 3400

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