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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 48 · 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. 1.42³ =
  2. 2.48³ =
  3. 3.98³ =
  4. 4.22³ =
  5. 5.37³ =
  6. 6.37³ =
  7. 7.28³ =
  8. 8.85³ =
  9. 9.96³ =
  10. 10.73³ =
  11. 11.69³ =
  12. 12.58³ =
  13. 13.38³ =
  14. 14.26³ =
  15. 15.39³ =
  16. 16.77³ =
  17. 17.49³ =
  18. 18.38³ =
  19. 19.35³ =
  20. 20.29³ =
  21. 21.39³ =
  22. 22.19³ =
  23. 23.64³ =
  24. 24.45³ =
  25. 25.39³ =
  26. 26.44³ =
  27. 27.29³ =
  28. 28.55³ =
  29. 29.88³ =
  30. 30.56³ =
  31. 31.59³ =
  32. 32.29³ =
  33. 33.22³ =
  34. 34.85³ =
  35. 35.24³ =
  36. 36.15³ =
  37. 37.81³ =
  38. 38.91³ =
  39. 39.22³ =
  40. 40.67³ =

Answer key

  1. 74088
  2. 110592
  3. 941192
  4. 10648
  5. 50653
  6. 50653
  7. 21952
  8. 614125
  9. 884736
  10. 389017
  11. 328509
  12. 195112
  13. 54872
  14. 17576
  15. 59319
  16. 456533
  17. 117649
  18. 54872
  19. 42875
  20. 24389
  21. 59319
  22. 6859
  23. 262144
  24. 91125
  25. 59319
  26. 85184
  27. 24389
  28. 166375
  29. 681472
  30. 175616
  31. 205379
  32. 24389
  33. 10648
  34. 614125
  35. 13824
  36. 3375
  37. 531441
  38. 753571
  39. 10648
  40. 300763

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