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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 27 · 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. 1.55³ =
  2. 2.61³ =
  3. 3.52³ =
  4. 4.99³ =
  5. 5.64³ =
  6. 6.36³ =
  7. 7.88³ =
  8. 8.34³ =
  9. 9.18³ =
  10. 10.92³ =
  11. 11.97³ =
  12. 12.13³ =
  13. 13.91³ =
  14. 14.32³ =
  15. 15.25³ =
  16. 16.57³ =
  17. 17.41³ =
  18. 18.52³ =
  19. 19.68³ =
  20. 20.93³ =
  21. 21.56³ =
  22. 22.79³ =
  23. 23.41³ =
  24. 24.36³ =
  25. 25.64³ =
  26. 26.81³ =
  27. 27.17³ =
  28. 28.77³ =
  29. 29.29³ =
  30. 30.25³ =
  31. 31.13³ =
  32. 32.77³ =
  33. 33.99³ =
  34. 34.85³ =
  35. 35.67³ =
  36. 36.12³ =
  37. 37.38³ =
  38. 38.53³ =
  39. 39.41³ =
  40. 40.41³ =

Answer key

  1. 166375
  2. 226981
  3. 140608
  4. 970299
  5. 262144
  6. 46656
  7. 681472
  8. 39304
  9. 5832
  10. 778688
  11. 912673
  12. 2197
  13. 753571
  14. 32768
  15. 15625
  16. 185193
  17. 68921
  18. 140608
  19. 314432
  20. 804357
  21. 175616
  22. 493039
  23. 68921
  24. 46656
  25. 262144
  26. 531441
  27. 4913
  28. 456533
  29. 24389
  30. 15625
  31. 2197
  32. 456533
  33. 970299
  34. 614125
  35. 300763
  36. 1728
  37. 54872
  38. 148877
  39. 68921
  40. 68921

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