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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 559 · 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. 1.42³ =
  2. 2.31³ =
  3. 3.51³ =
  4. 4.14³ =
  5. 5.67³ =
  6. 6.72³ =
  7. 7.81³ =
  8. 8.67³ =
  9. 9.76³ =
  10. 10.88³ =
  11. 11.28³ =
  12. 12.26³ =
  13. 13.28³ =
  14. 14.33³ =
  15. 15.45³ =
  16. 16.77³ =
  17. 17.27³ =
  18. 18.91³ =
  19. 19.64³ =
  20. 20.33³ =
  21. 21.13³ =
  22. 22.47³ =
  23. 23.76³ =
  24. 24.66³ =
  25. 25.28³ =
  26. 26.31³ =
  27. 27.49³ =
  28. 28.95³ =
  29. 29.87³ =
  30. 30.35³ =
  31. 31.62³ =
  32. 32.51³ =
  33. 33.25³ =
  34. 34.24³ =
  35. 35.64³ =
  36. 36.35³ =
  37. 37.26³ =
  38. 38.96³ =
  39. 39.62³ =
  40. 40.42³ =

Answer key

  1. 74088
  2. 29791
  3. 132651
  4. 2744
  5. 300763
  6. 373248
  7. 531441
  8. 300763
  9. 438976
  10. 681472
  11. 21952
  12. 17576
  13. 21952
  14. 35937
  15. 91125
  16. 456533
  17. 19683
  18. 753571
  19. 262144
  20. 35937
  21. 2197
  22. 103823
  23. 438976
  24. 287496
  25. 21952
  26. 29791
  27. 117649
  28. 857375
  29. 658503
  30. 42875
  31. 238328
  32. 132651
  33. 15625
  34. 13824
  35. 262144
  36. 42875
  37. 17576
  38. 884736
  39. 238328
  40. 74088

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