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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 147 · 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. 1.82³ =
  2. 2.14³ =
  3. 3.94³ =
  4. 4.53³ =
  5. 5.49³ =
  6. 6.69³ =
  7. 7.51³ =
  8. 8.17³ =
  9. 9.19³ =
  10. 10.71³ =
  11. 11.73³ =
  12. 12.87³ =
  13. 13.76³ =
  14. 14.17³ =
  15. 15.31³ =
  16. 16.96³ =
  17. 17.77³ =
  18. 18.34³ =
  19. 19.23³ =
  20. 20.18³ =
  21. 21.26³ =
  22. 22.14³ =
  23. 23.49³ =
  24. 24.32³ =
  25. 25.61³ =
  26. 26.22³ =
  27. 27.47³ =
  28. 28.14³ =
  29. 29.45³ =
  30. 30.41³ =
  31. 31.61³ =
  32. 32.45³ =
  33. 33.91³ =
  34. 34.74³ =
  35. 35.18³ =
  36. 36.24³ =
  37. 37.59³ =
  38. 38.83³ =
  39. 39.67³ =
  40. 40.25³ =

Answer key

  1. 551368
  2. 2744
  3. 830584
  4. 148877
  5. 117649
  6. 328509
  7. 132651
  8. 4913
  9. 6859
  10. 357911
  11. 389017
  12. 658503
  13. 438976
  14. 4913
  15. 29791
  16. 884736
  17. 456533
  18. 39304
  19. 12167
  20. 5832
  21. 17576
  22. 2744
  23. 117649
  24. 32768
  25. 226981
  26. 10648
  27. 103823
  28. 2744
  29. 91125
  30. 68921
  31. 226981
  32. 91125
  33. 753571
  34. 405224
  35. 5832
  36. 13824
  37. 205379
  38. 571787
  39. 300763
  40. 15625

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