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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 945 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.43³ =
  2. 2.29³ =
  3. 3.62³ =
  4. 4.39³ =
  5. 5.67³ =
  6. 6.59³ =
  7. 7.11³ =
  8. 8.95³ =
  9. 9.16³ =
  10. 10.87³ =
  11. 11.25³ =
  12. 12.23³ =
  13. 13.82³ =
  14. 14.93³ =
  15. 15.43³ =
  16. 16.45³ =
  17. 17.78³ =
  18. 18.18³ =
  19. 19.28³ =
  20. 20.23³ =
  21. 21.57³ =
  22. 22.77³ =
  23. 23.78³ =
  24. 24.26³ =
  25. 25.29³ =
  26. 26.65³ =
  27. 27.15³ =
  28. 28.69³ =
  29. 29.72³ =
  30. 30.41³ =
  31. 31.78³ =
  32. 32.14³ =
  33. 33.84³ =
  34. 34.45³ =
  35. 35.72³ =
  36. 36.46³ =
  37. 37.11³ =
  38. 38.91³ =
  39. 39.15³ =
  40. 40.98³ =

Answer key

  1. 79507
  2. 24389
  3. 238328
  4. 59319
  5. 300763
  6. 205379
  7. 1331
  8. 857375
  9. 4096
  10. 658503
  11. 15625
  12. 12167
  13. 551368
  14. 804357
  15. 79507
  16. 91125
  17. 474552
  18. 5832
  19. 21952
  20. 12167
  21. 185193
  22. 456533
  23. 474552
  24. 17576
  25. 24389
  26. 274625
  27. 3375
  28. 328509
  29. 373248
  30. 68921
  31. 474552
  32. 2744
  33. 592704
  34. 91125
  35. 373248
  36. 97336
  37. 1331
  38. 753571
  39. 3375
  40. 941192

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