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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 807 · 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. 1.85³ =
  2. 2.85³ =
  3. 3.66³ =
  4. 4.49³ =
  5. 5.87³ =
  6. 6.19³ =
  7. 7.24³ =
  8. 8.99³ =
  9. 9.67³ =
  10. 10.66³ =
  11. 11.62³ =
  12. 12.93³ =
  13. 13.25³ =
  14. 14.78³ =
  15. 15.39³ =
  16. 16.83³ =
  17. 17.28³ =
  18. 18.17³ =
  19. 19.43³ =
  20. 20.43³ =
  21. 21.74³ =
  22. 22.64³ =
  23. 23.91³ =
  24. 24.13³ =
  25. 25.82³ =
  26. 26.67³ =
  27. 27.45³ =
  28. 28.53³ =
  29. 29.51³ =
  30. 30.26³ =
  31. 31.95³ =
  32. 32.92³ =
  33. 33.46³ =
  34. 34.83³ =
  35. 35.91³ =
  36. 36.21³ =
  37. 37.22³ =
  38. 38.65³ =
  39. 39.82³ =
  40. 40.84³ =

Answer key

  1. 614125
  2. 614125
  3. 287496
  4. 117649
  5. 658503
  6. 6859
  7. 13824
  8. 970299
  9. 300763
  10. 287496
  11. 238328
  12. 804357
  13. 15625
  14. 474552
  15. 59319
  16. 571787
  17. 21952
  18. 4913
  19. 79507
  20. 79507
  21. 405224
  22. 262144
  23. 753571
  24. 2197
  25. 551368
  26. 300763
  27. 91125
  28. 148877
  29. 132651
  30. 17576
  31. 857375
  32. 778688
  33. 97336
  34. 571787
  35. 753571
  36. 9261
  37. 10648
  38. 274625
  39. 551368
  40. 592704

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