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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 230 · 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. 1.13³ =
  2. 2.76³ =
  3. 3.67³ =
  4. 4.45³ =
  5. 5.67³ =
  6. 6.78³ =
  7. 7.62³ =
  8. 8.78³ =
  9. 9.56³ =
  10. 10.36³ =
  11. 11.86³ =
  12. 12.91³ =
  13. 13.55³ =
  14. 14.12³ =
  15. 15.68³ =
  16. 16.51³ =
  17. 17.37³ =
  18. 18.73³ =
  19. 19.34³ =
  20. 20.88³ =
  21. 21.24³ =
  22. 22.32³ =
  23. 23.88³ =
  24. 24.88³ =
  25. 25.65³ =
  26. 26.34³ =
  27. 27.67³ =
  28. 28.32³ =
  29. 29.69³ =
  30. 30.11³ =
  31. 31.31³ =
  32. 32.33³ =
  33. 33.25³ =
  34. 34.17³ =
  35. 35.83³ =
  36. 36.31³ =
  37. 37.69³ =
  38. 38.23³ =
  39. 39.48³ =
  40. 40.73³ =

Answer key

  1. 2197
  2. 438976
  3. 300763
  4. 91125
  5. 300763
  6. 474552
  7. 238328
  8. 474552
  9. 175616
  10. 46656
  11. 636056
  12. 753571
  13. 166375
  14. 1728
  15. 314432
  16. 132651
  17. 50653
  18. 389017
  19. 39304
  20. 681472
  21. 13824
  22. 32768
  23. 681472
  24. 681472
  25. 274625
  26. 39304
  27. 300763
  28. 32768
  29. 328509
  30. 1331
  31. 29791
  32. 35937
  33. 15625
  34. 4913
  35. 571787
  36. 29791
  37. 328509
  38. 12167
  39. 110592
  40. 389017

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