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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 50 · 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. 1.97³ =
  2. 2.54³ =
  3. 3.94³ =
  4. 4.61³ =
  5. 5.77³ =
  6. 6.17³ =
  7. 7.78³ =
  8. 8.57³ =
  9. 9.88³ =
  10. 10.11³ =
  11. 11.75³ =
  12. 12.46³ =
  13. 13.81³ =
  14. 14.32³ =
  15. 15.26³ =
  16. 16.64³ =
  17. 17.69³ =
  18. 18.67³ =
  19. 19.65³ =
  20. 20.92³ =
  21. 21.83³ =
  22. 22.45³ =
  23. 23.18³ =
  24. 24.15³ =
  25. 25.58³ =
  26. 26.75³ =
  27. 27.63³ =
  28. 28.91³ =
  29. 29.32³ =
  30. 30.87³ =
  31. 31.62³ =
  32. 32.31³ =
  33. 33.93³ =
  34. 34.77³ =
  35. 35.54³ =
  36. 36.16³ =
  37. 37.96³ =
  38. 38.23³ =
  39. 39.95³ =
  40. 40.19³ =

Answer key

  1. 912673
  2. 157464
  3. 830584
  4. 226981
  5. 456533
  6. 4913
  7. 474552
  8. 185193
  9. 681472
  10. 1331
  11. 421875
  12. 97336
  13. 531441
  14. 32768
  15. 17576
  16. 262144
  17. 328509
  18. 300763
  19. 274625
  20. 778688
  21. 571787
  22. 91125
  23. 5832
  24. 3375
  25. 195112
  26. 421875
  27. 250047
  28. 753571
  29. 32768
  30. 658503
  31. 238328
  32. 29791
  33. 804357
  34. 456533
  35. 157464
  36. 4096
  37. 884736
  38. 12167
  39. 857375
  40. 6859

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