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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 443 · 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. 1.23³ =
  2. 2.81³ =
  3. 3.22³ =
  4. 4.95³ =
  5. 5.31³ =
  6. 6.22³ =
  7. 7.12³ =
  8. 8.91³ =
  9. 9.24³ =
  10. 10.53³ =
  11. 11.21³ =
  12. 12.35³ =
  13. 13.52³ =
  14. 14.61³ =
  15. 15.23³ =
  16. 16.71³ =
  17. 17.88³ =
  18. 18.31³ =
  19. 19.97³ =
  20. 20.13³ =
  21. 21.24³ =
  22. 22.45³ =
  23. 23.78³ =
  24. 24.33³ =
  25. 25.67³ =
  26. 26.25³ =
  27. 27.95³ =
  28. 28.74³ =
  29. 29.47³ =
  30. 30.72³ =
  31. 31.12³ =
  32. 32.58³ =
  33. 33.95³ =
  34. 34.82³ =
  35. 35.29³ =
  36. 36.86³ =
  37. 37.24³ =
  38. 38.81³ =
  39. 39.65³ =
  40. 40.67³ =

Answer key

  1. 12167
  2. 531441
  3. 10648
  4. 857375
  5. 29791
  6. 10648
  7. 1728
  8. 753571
  9. 13824
  10. 148877
  11. 9261
  12. 42875
  13. 140608
  14. 226981
  15. 12167
  16. 357911
  17. 681472
  18. 29791
  19. 912673
  20. 2197
  21. 13824
  22. 91125
  23. 474552
  24. 35937
  25. 300763
  26. 15625
  27. 857375
  28. 405224
  29. 103823
  30. 373248
  31. 1728
  32. 195112
  33. 857375
  34. 551368
  35. 24389
  36. 636056
  37. 13824
  38. 531441
  39. 274625
  40. 300763

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