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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 560 · 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. 1.88³ =
  2. 2.21³ =
  3. 3.56³ =
  4. 4.69³ =
  5. 5.61³ =
  6. 6.45³ =
  7. 7.74³ =
  8. 8.71³ =
  9. 9.64³ =
  10. 10.24³ =
  11. 11.63³ =
  12. 12.91³ =
  13. 13.29³ =
  14. 14.35³ =
  15. 15.22³ =
  16. 16.32³ =
  17. 17.33³ =
  18. 18.43³ =
  19. 19.31³ =
  20. 20.76³ =
  21. 21.61³ =
  22. 22.53³ =
  23. 23.97³ =
  24. 24.91³ =
  25. 25.96³ =
  26. 26.66³ =
  27. 27.62³ =
  28. 28.88³ =
  29. 29.12³ =
  30. 30.63³ =
  31. 31.58³ =
  32. 32.78³ =
  33. 33.83³ =
  34. 34.17³ =
  35. 35.53³ =
  36. 36.59³ =
  37. 37.74³ =
  38. 38.11³ =
  39. 39.34³ =
  40. 40.88³ =

Answer key

  1. 681472
  2. 9261
  3. 175616
  4. 328509
  5. 226981
  6. 91125
  7. 405224
  8. 357911
  9. 262144
  10. 13824
  11. 250047
  12. 753571
  13. 24389
  14. 42875
  15. 10648
  16. 32768
  17. 35937
  18. 79507
  19. 29791
  20. 438976
  21. 226981
  22. 148877
  23. 912673
  24. 753571
  25. 884736
  26. 287496
  27. 238328
  28. 681472
  29. 1728
  30. 250047
  31. 195112
  32. 474552
  33. 571787
  34. 4913
  35. 148877
  36. 205379
  37. 405224
  38. 1331
  39. 39304
  40. 681472

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