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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 207 · 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. 1.38³ =
  2. 2.76³ =
  3. 3.59³ =
  4. 4.91³ =
  5. 5.21³ =
  6. 6.15³ =
  7. 7.26³ =
  8. 8.61³ =
  9. 9.59³ =
  10. 10.28³ =
  11. 11.29³ =
  12. 12.68³ =
  13. 13.52³ =
  14. 14.54³ =
  15. 15.81³ =
  16. 16.39³ =
  17. 17.14³ =
  18. 18.74³ =
  19. 19.18³ =
  20. 20.49³ =
  21. 21.78³ =
  22. 22.59³ =
  23. 23.28³ =
  24. 24.52³ =
  25. 25.88³ =
  26. 26.77³ =
  27. 27.84³ =
  28. 28.55³ =
  29. 29.87³ =
  30. 30.66³ =
  31. 31.31³ =
  32. 32.15³ =
  33. 33.92³ =
  34. 34.64³ =
  35. 35.32³ =
  36. 36.52³ =
  37. 37.16³ =
  38. 38.99³ =
  39. 39.32³ =
  40. 40.44³ =

Answer key

  1. 54872
  2. 438976
  3. 205379
  4. 753571
  5. 9261
  6. 3375
  7. 17576
  8. 226981
  9. 205379
  10. 21952
  11. 24389
  12. 314432
  13. 140608
  14. 157464
  15. 531441
  16. 59319
  17. 2744
  18. 405224
  19. 5832
  20. 117649
  21. 474552
  22. 205379
  23. 21952
  24. 140608
  25. 681472
  26. 456533
  27. 592704
  28. 166375
  29. 658503
  30. 287496
  31. 29791
  32. 3375
  33. 778688
  34. 262144
  35. 32768
  36. 140608
  37. 4096
  38. 970299
  39. 32768
  40. 85184

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