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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 152 · 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. 1.62³ =
  2. 2.31³ =
  3. 3.37³ =
  4. 4.19³ =
  5. 5.13³ =
  6. 6.29³ =
  7. 7.13³ =
  8. 8.46³ =
  9. 9.67³ =
  10. 10.25³ =
  11. 11.85³ =
  12. 12.24³ =
  13. 13.15³ =
  14. 14.49³ =
  15. 15.55³ =
  16. 16.31³ =
  17. 17.81³ =
  18. 18.21³ =
  19. 19.42³ =
  20. 20.26³ =
  21. 21.74³ =
  22. 22.89³ =
  23. 23.62³ =
  24. 24.69³ =
  25. 25.67³ =
  26. 26.76³ =
  27. 27.94³ =
  28. 28.42³ =
  29. 29.51³ =
  30. 30.64³ =
  31. 31.81³ =
  32. 32.88³ =
  33. 33.16³ =
  34. 34.19³ =
  35. 35.66³ =
  36. 36.59³ =
  37. 37.28³ =
  38. 38.11³ =
  39. 39.58³ =
  40. 40.65³ =

Answer key

  1. 238328
  2. 29791
  3. 50653
  4. 6859
  5. 2197
  6. 24389
  7. 2197
  8. 97336
  9. 300763
  10. 15625
  11. 614125
  12. 13824
  13. 3375
  14. 117649
  15. 166375
  16. 29791
  17. 531441
  18. 9261
  19. 74088
  20. 17576
  21. 405224
  22. 704969
  23. 238328
  24. 328509
  25. 300763
  26. 438976
  27. 830584
  28. 74088
  29. 132651
  30. 262144
  31. 531441
  32. 681472
  33. 4096
  34. 6859
  35. 287496
  36. 205379
  37. 21952
  38. 1331
  39. 195112
  40. 274625

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