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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 965 · 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. 1.61³ =
  2. 2.61³ =
  3. 3.76³ =
  4. 4.75³ =
  5. 5.44³ =
  6. 6.31³ =
  7. 7.94³ =
  8. 8.82³ =
  9. 9.58³ =
  10. 10.21³ =
  11. 11.55³ =
  12. 12.22³ =
  13. 13.21³ =
  14. 14.17³ =
  15. 15.35³ =
  16. 16.59³ =
  17. 17.79³ =
  18. 18.22³ =
  19. 19.52³ =
  20. 20.49³ =
  21. 21.83³ =
  22. 22.24³ =
  23. 23.88³ =
  24. 24.41³ =
  25. 25.62³ =
  26. 26.72³ =
  27. 27.91³ =
  28. 28.95³ =
  29. 29.81³ =
  30. 30.92³ =
  31. 31.85³ =
  32. 32.71³ =
  33. 33.78³ =
  34. 34.21³ =
  35. 35.93³ =
  36. 36.32³ =
  37. 37.79³ =
  38. 38.64³ =
  39. 39.23³ =
  40. 40.52³ =

Answer key

  1. 226981
  2. 226981
  3. 438976
  4. 421875
  5. 85184
  6. 29791
  7. 830584
  8. 551368
  9. 195112
  10. 9261
  11. 166375
  12. 10648
  13. 9261
  14. 4913
  15. 42875
  16. 205379
  17. 493039
  18. 10648
  19. 140608
  20. 117649
  21. 571787
  22. 13824
  23. 681472
  24. 68921
  25. 238328
  26. 373248
  27. 753571
  28. 857375
  29. 531441
  30. 778688
  31. 614125
  32. 357911
  33. 474552
  34. 9261
  35. 804357
  36. 32768
  37. 493039
  38. 262144
  39. 12167
  40. 140608

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