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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 283 · 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. 1.45³ =
  2. 2.76³ =
  3. 3.79³ =
  4. 4.44³ =
  5. 5.34³ =
  6. 6.58³ =
  7. 7.56³ =
  8. 8.37³ =
  9. 9.51³ =
  10. 10.35³ =
  11. 11.27³ =
  12. 12.71³ =
  13. 13.32³ =
  14. 14.16³ =
  15. 15.29³ =
  16. 16.33³ =
  17. 17.26³ =
  18. 18.42³ =
  19. 19.33³ =
  20. 20.68³ =
  21. 21.81³ =
  22. 22.52³ =
  23. 23.28³ =
  24. 24.25³ =
  25. 25.77³ =
  26. 26.11³ =
  27. 27.92³ =
  28. 28.55³ =
  29. 29.45³ =
  30. 30.17³ =
  31. 31.35³ =
  32. 32.55³ =
  33. 33.47³ =
  34. 34.95³ =
  35. 35.91³ =
  36. 36.82³ =
  37. 37.65³ =
  38. 38.25³ =
  39. 39.29³ =
  40. 40.67³ =

Answer key

  1. 91125
  2. 438976
  3. 493039
  4. 85184
  5. 39304
  6. 195112
  7. 175616
  8. 50653
  9. 132651
  10. 42875
  11. 19683
  12. 357911
  13. 32768
  14. 4096
  15. 24389
  16. 35937
  17. 17576
  18. 74088
  19. 35937
  20. 314432
  21. 531441
  22. 140608
  23. 21952
  24. 15625
  25. 456533
  26. 1331
  27. 778688
  28. 166375
  29. 91125
  30. 4913
  31. 42875
  32. 166375
  33. 103823
  34. 857375
  35. 753571
  36. 551368
  37. 274625
  38. 15625
  39. 24389
  40. 300763

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