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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 802 · 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. 1.59³ =
  2. 2.47³ =
  3. 3.56³ =
  4. 4.26³ =
  5. 5.16³ =
  6. 6.23³ =
  7. 7.37³ =
  8. 8.28³ =
  9. 9.57³ =
  10. 10.47³ =
  11. 11.41³ =
  12. 12.41³ =
  13. 13.53³ =
  14. 14.11³ =
  15. 15.45³ =
  16. 16.63³ =
  17. 17.35³ =
  18. 18.26³ =
  19. 19.61³ =
  20. 20.69³ =
  21. 21.77³ =
  22. 22.41³ =
  23. 23.22³ =
  24. 24.58³ =
  25. 25.81³ =
  26. 26.94³ =
  27. 27.59³ =
  28. 28.75³ =
  29. 29.48³ =
  30. 30.87³ =
  31. 31.79³ =
  32. 32.96³ =
  33. 33.24³ =
  34. 34.81³ =
  35. 35.29³ =
  36. 36.81³ =
  37. 37.13³ =
  38. 38.49³ =
  39. 39.81³ =
  40. 40.13³ =

Answer key

  1. 205379
  2. 103823
  3. 175616
  4. 17576
  5. 4096
  6. 12167
  7. 50653
  8. 21952
  9. 185193
  10. 103823
  11. 68921
  12. 68921
  13. 148877
  14. 1331
  15. 91125
  16. 250047
  17. 42875
  18. 17576
  19. 226981
  20. 328509
  21. 456533
  22. 68921
  23. 10648
  24. 195112
  25. 531441
  26. 830584
  27. 205379
  28. 421875
  29. 110592
  30. 658503
  31. 493039
  32. 884736
  33. 13824
  34. 531441
  35. 24389
  36. 531441
  37. 2197
  38. 117649
  39. 531441
  40. 2197

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