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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 7 · 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. 1.63³ =
  2. 2.37³ =
  3. 3.37³ =
  4. 4.53³ =
  5. 5.95³ =
  6. 6.29³ =
  7. 7.13³ =
  8. 8.57³ =
  9. 9.57³ =
  10. 10.23³ =
  11. 11.58³ =
  12. 12.82³ =
  13. 13.45³ =
  14. 14.97³ =
  15. 15.29³ =
  16. 16.21³ =
  17. 17.53³ =
  18. 18.26³ =
  19. 19.22³ =
  20. 20.16³ =
  21. 21.67³ =
  22. 22.16³ =
  23. 23.35³ =
  24. 24.45³ =
  25. 25.32³ =
  26. 26.37³ =
  27. 27.29³ =
  28. 28.91³ =
  29. 29.44³ =
  30. 30.69³ =
  31. 31.83³ =
  32. 32.61³ =
  33. 33.23³ =
  34. 34.59³ =
  35. 35.21³ =
  36. 36.41³ =
  37. 37.47³ =
  38. 38.19³ =
  39. 39.42³ =
  40. 40.65³ =

Answer key

  1. 250047
  2. 50653
  3. 50653
  4. 148877
  5. 857375
  6. 24389
  7. 2197
  8. 185193
  9. 185193
  10. 12167
  11. 195112
  12. 551368
  13. 91125
  14. 912673
  15. 24389
  16. 9261
  17. 148877
  18. 17576
  19. 10648
  20. 4096
  21. 300763
  22. 4096
  23. 42875
  24. 91125
  25. 32768
  26. 50653
  27. 24389
  28. 753571
  29. 85184
  30. 328509
  31. 571787
  32. 226981
  33. 12167
  34. 205379
  35. 9261
  36. 68921
  37. 103823
  38. 6859
  39. 74088
  40. 274625

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