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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 779 · 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. 1.28³ =
  2. 2.18³ =
  3. 3.44³ =
  4. 4.77³ =
  5. 5.96³ =
  6. 6.16³ =
  7. 7.48³ =
  8. 8.35³ =
  9. 9.85³ =
  10. 10.32³ =
  11. 11.65³ =
  12. 12.28³ =
  13. 13.49³ =
  14. 14.41³ =
  15. 15.87³ =
  16. 16.28³ =
  17. 17.58³ =
  18. 18.91³ =
  19. 19.28³ =
  20. 20.88³ =
  21. 21.42³ =
  22. 22.65³ =
  23. 23.15³ =
  24. 24.73³ =
  25. 25.26³ =
  26. 26.54³ =
  27. 27.57³ =
  28. 28.16³ =
  29. 29.61³ =
  30. 30.41³ =
  31. 31.82³ =
  32. 32.71³ =
  33. 33.78³ =
  34. 34.89³ =
  35. 35.22³ =
  36. 36.26³ =
  37. 37.61³ =
  38. 38.51³ =
  39. 39.13³ =
  40. 40.32³ =

Answer key

  1. 21952
  2. 5832
  3. 85184
  4. 456533
  5. 884736
  6. 4096
  7. 110592
  8. 42875
  9. 614125
  10. 32768
  11. 274625
  12. 21952
  13. 117649
  14. 68921
  15. 658503
  16. 21952
  17. 195112
  18. 753571
  19. 21952
  20. 681472
  21. 74088
  22. 274625
  23. 3375
  24. 389017
  25. 17576
  26. 157464
  27. 185193
  28. 4096
  29. 226981
  30. 68921
  31. 551368
  32. 357911
  33. 474552
  34. 704969
  35. 10648
  36. 17576
  37. 226981
  38. 132651
  39. 2197
  40. 32768

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