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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 851 · 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. 1.28³ =
  2. 2.98³ =
  3. 3.16³ =
  4. 4.39³ =
  5. 5.32³ =
  6. 6.15³ =
  7. 7.74³ =
  8. 8.49³ =
  9. 9.41³ =
  10. 10.83³ =
  11. 11.91³ =
  12. 12.21³ =
  13. 13.84³ =
  14. 14.22³ =
  15. 15.33³ =
  16. 16.34³ =
  17. 17.19³ =
  18. 18.58³ =
  19. 19.93³ =
  20. 20.41³ =
  21. 21.24³ =
  22. 22.88³ =
  23. 23.87³ =
  24. 24.51³ =
  25. 25.63³ =
  26. 26.95³ =
  27. 27.14³ =
  28. 28.68³ =
  29. 29.69³ =
  30. 30.65³ =
  31. 31.81³ =
  32. 32.49³ =
  33. 33.62³ =
  34. 34.78³ =
  35. 35.86³ =
  36. 36.14³ =
  37. 37.27³ =
  38. 38.88³ =
  39. 39.52³ =
  40. 40.58³ =

Answer key

  1. 21952
  2. 941192
  3. 4096
  4. 59319
  5. 32768
  6. 3375
  7. 405224
  8. 117649
  9. 68921
  10. 571787
  11. 753571
  12. 9261
  13. 592704
  14. 10648
  15. 35937
  16. 39304
  17. 6859
  18. 195112
  19. 804357
  20. 68921
  21. 13824
  22. 681472
  23. 658503
  24. 132651
  25. 250047
  26. 857375
  27. 2744
  28. 314432
  29. 328509
  30. 274625
  31. 531441
  32. 117649
  33. 238328
  34. 474552
  35. 636056
  36. 2744
  37. 19683
  38. 681472
  39. 140608
  40. 195112

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