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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 360 · 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. 1.57³ =
  2. 2.91³ =
  3. 3.25³ =
  4. 4.83³ =
  5. 5.53³ =
  6. 6.62³ =
  7. 7.98³ =
  8. 8.26³ =
  9. 9.91³ =
  10. 10.81³ =
  11. 11.78³ =
  12. 12.28³ =
  13. 13.78³ =
  14. 14.79³ =
  15. 15.74³ =
  16. 16.85³ =
  17. 17.53³ =
  18. 18.21³ =
  19. 19.59³ =
  20. 20.46³ =
  21. 21.25³ =
  22. 22.29³ =
  23. 23.84³ =
  24. 24.61³ =
  25. 25.42³ =
  26. 26.44³ =
  27. 27.68³ =
  28. 28.28³ =
  29. 29.44³ =
  30. 30.42³ =
  31. 31.59³ =
  32. 32.63³ =
  33. 33.17³ =
  34. 34.11³ =
  35. 35.58³ =
  36. 36.45³ =
  37. 37.36³ =
  38. 38.43³ =
  39. 39.79³ =
  40. 40.32³ =

Answer key

  1. 185193
  2. 753571
  3. 15625
  4. 571787
  5. 148877
  6. 238328
  7. 941192
  8. 17576
  9. 753571
  10. 531441
  11. 474552
  12. 21952
  13. 474552
  14. 493039
  15. 405224
  16. 614125
  17. 148877
  18. 9261
  19. 205379
  20. 97336
  21. 15625
  22. 24389
  23. 592704
  24. 226981
  25. 74088
  26. 85184
  27. 314432
  28. 21952
  29. 85184
  30. 74088
  31. 205379
  32. 250047
  33. 4913
  34. 1331
  35. 195112
  36. 91125
  37. 46656
  38. 79507
  39. 493039
  40. 32768

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