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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 966 · 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. 1.93 × 5 =
  2. 2.45 × 50 =
  3. 3.46 × 5 =
  4. 4.94 × 50 =
  5. 5.19 × 50 =
  6. 6.63 × 5 =
  7. 7.15 × 5 =
  8. 8.70 × 50 =
  9. 9.57 × 50 =
  10. 10.48 × 5 =
  11. 11.79 × 5 =
  12. 12.17 × 5 =
  13. 13.77 × 50 =
  14. 14.81 × 5 =
  15. 15.44 × 50 =
  16. 16.16 × 50 =
  17. 17.27 × 50 =
  18. 18.16 × 5 =
  19. 19.96 × 50 =
  20. 20.87 × 50 =
  21. 21.76 × 5 =
  22. 22.83 × 5 =
  23. 23.43 × 5 =
  24. 24.20 × 5 =
  25. 25.39 × 5 =
  26. 26.75 × 50 =
  27. 27.25 × 50 =
  28. 28.95 × 5 =
  29. 29.74 × 5 =
  30. 30.92 × 5 =
  31. 31.50 × 50 =
  32. 32.22 × 50 =
  33. 33.66 × 5 =
  34. 34.72 × 50 =
  35. 35.29 × 50 =
  36. 36.36 × 50 =
  37. 37.77 × 50 =
  38. 38.27 × 50 =
  39. 39.53 × 5 =
  40. 40.20 × 5 =

Answer key

  1. 465
  2. 2250
  3. 230
  4. 4700
  5. 950
  6. 315
  7. 75
  8. 3500
  9. 2850
  10. 240
  11. 395
  12. 85
  13. 3850
  14. 405
  15. 2200
  16. 800
  17. 1350
  18. 80
  19. 4800
  20. 4350
  21. 380
  22. 415
  23. 215
  24. 100
  25. 195
  26. 3750
  27. 1250
  28. 475
  29. 370
  30. 460
  31. 2500
  32. 1100
  33. 330
  34. 3600
  35. 1450
  36. 1800
  37. 3850
  38. 1350
  39. 265
  40. 100

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