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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 222 · 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. 1.23³ =
  2. 2.86³ =
  3. 3.11³ =
  4. 4.74³ =
  5. 5.51³ =
  6. 6.62³ =
  7. 7.16³ =
  8. 8.83³ =
  9. 9.86³ =
  10. 10.12³ =
  11. 11.17³ =
  12. 12.87³ =
  13. 13.25³ =
  14. 14.16³ =
  15. 15.52³ =
  16. 16.76³ =
  17. 17.87³ =
  18. 18.27³ =
  19. 19.14³ =
  20. 20.42³ =
  21. 21.21³ =
  22. 22.67³ =
  23. 23.99³ =
  24. 24.29³ =
  25. 25.15³ =
  26. 26.57³ =
  27. 27.21³ =
  28. 28.72³ =
  29. 29.41³ =
  30. 30.17³ =
  31. 31.21³ =
  32. 32.36³ =
  33. 33.78³ =
  34. 34.32³ =
  35. 35.45³ =
  36. 36.95³ =
  37. 37.34³ =
  38. 38.44³ =
  39. 39.29³ =
  40. 40.53³ =

Answer key

  1. 12167
  2. 636056
  3. 1331
  4. 405224
  5. 132651
  6. 238328
  7. 4096
  8. 571787
  9. 636056
  10. 1728
  11. 4913
  12. 658503
  13. 15625
  14. 4096
  15. 140608
  16. 438976
  17. 658503
  18. 19683
  19. 2744
  20. 74088
  21. 9261
  22. 300763
  23. 970299
  24. 24389
  25. 3375
  26. 185193
  27. 9261
  28. 373248
  29. 68921
  30. 4913
  31. 9261
  32. 46656
  33. 474552
  34. 32768
  35. 91125
  36. 857375
  37. 39304
  38. 85184
  39. 24389
  40. 148877

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