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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 498 · 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. 1.52³ =
  2. 2.24³ =
  3. 3.87³ =
  4. 4.49³ =
  5. 5.31³ =
  6. 6.88³ =
  7. 7.86³ =
  8. 8.34³ =
  9. 9.31³ =
  10. 10.29³ =
  11. 11.21³ =
  12. 12.84³ =
  13. 13.72³ =
  14. 14.26³ =
  15. 15.45³ =
  16. 16.58³ =
  17. 17.46³ =
  18. 18.57³ =
  19. 19.92³ =
  20. 20.23³ =
  21. 21.77³ =
  22. 22.49³ =
  23. 23.69³ =
  24. 24.63³ =
  25. 25.77³ =
  26. 26.61³ =
  27. 27.22³ =
  28. 28.61³ =
  29. 29.74³ =
  30. 30.78³ =
  31. 31.67³ =
  32. 32.73³ =
  33. 33.68³ =
  34. 34.42³ =
  35. 35.65³ =
  36. 36.72³ =
  37. 37.23³ =
  38. 38.56³ =
  39. 39.12³ =
  40. 40.62³ =

Answer key

  1. 140608
  2. 13824
  3. 658503
  4. 117649
  5. 29791
  6. 681472
  7. 636056
  8. 39304
  9. 29791
  10. 24389
  11. 9261
  12. 592704
  13. 373248
  14. 17576
  15. 91125
  16. 195112
  17. 97336
  18. 185193
  19. 778688
  20. 12167
  21. 456533
  22. 117649
  23. 328509
  24. 250047
  25. 456533
  26. 226981
  27. 10648
  28. 226981
  29. 405224
  30. 474552
  31. 300763
  32. 389017
  33. 314432
  34. 74088
  35. 274625
  36. 373248
  37. 12167
  38. 175616
  39. 1728
  40. 238328

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