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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 412 · 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. 1.15³ =
  2. 2.15³ =
  3. 3.87³ =
  4. 4.92³ =
  5. 5.64³ =
  6. 6.73³ =
  7. 7.68³ =
  8. 8.89³ =
  9. 9.28³ =
  10. 10.96³ =
  11. 11.33³ =
  12. 12.97³ =
  13. 13.86³ =
  14. 14.74³ =
  15. 15.31³ =
  16. 16.28³ =
  17. 17.57³ =
  18. 18.95³ =
  19. 19.91³ =
  20. 20.58³ =
  21. 21.53³ =
  22. 22.97³ =
  23. 23.13³ =
  24. 24.16³ =
  25. 25.65³ =
  26. 26.61³ =
  27. 27.17³ =
  28. 28.71³ =
  29. 29.44³ =
  30. 30.63³ =
  31. 31.64³ =
  32. 32.88³ =
  33. 33.36³ =
  34. 34.72³ =
  35. 35.61³ =
  36. 36.95³ =
  37. 37.42³ =
  38. 38.37³ =
  39. 39.73³ =
  40. 40.38³ =

Answer key

  1. 3375
  2. 3375
  3. 658503
  4. 778688
  5. 262144
  6. 389017
  7. 314432
  8. 704969
  9. 21952
  10. 884736
  11. 35937
  12. 912673
  13. 636056
  14. 405224
  15. 29791
  16. 21952
  17. 185193
  18. 857375
  19. 753571
  20. 195112
  21. 148877
  22. 912673
  23. 2197
  24. 4096
  25. 274625
  26. 226981
  27. 4913
  28. 357911
  29. 85184
  30. 250047
  31. 262144
  32. 681472
  33. 46656
  34. 373248
  35. 226981
  36. 857375
  37. 74088
  38. 50653
  39. 389017
  40. 54872

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