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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 650 · 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. 1.64³ =
  2. 2.38³ =
  3. 3.26³ =
  4. 4.28³ =
  5. 5.31³ =
  6. 6.92³ =
  7. 7.14³ =
  8. 8.78³ =
  9. 9.73³ =
  10. 10.44³ =
  11. 11.57³ =
  12. 12.57³ =
  13. 13.58³ =
  14. 14.97³ =
  15. 15.34³ =
  16. 16.31³ =
  17. 17.66³ =
  18. 18.24³ =
  19. 19.54³ =
  20. 20.56³ =
  21. 21.83³ =
  22. 22.74³ =
  23. 23.44³ =
  24. 24.23³ =
  25. 25.68³ =
  26. 26.21³ =
  27. 27.59³ =
  28. 28.91³ =
  29. 29.37³ =
  30. 30.88³ =
  31. 31.81³ =
  32. 32.52³ =
  33. 33.81³ =
  34. 34.99³ =
  35. 35.67³ =
  36. 36.99³ =
  37. 37.56³ =
  38. 38.55³ =
  39. 39.61³ =
  40. 40.28³ =

Answer key

  1. 262144
  2. 54872
  3. 17576
  4. 21952
  5. 29791
  6. 778688
  7. 2744
  8. 474552
  9. 389017
  10. 85184
  11. 185193
  12. 185193
  13. 195112
  14. 912673
  15. 39304
  16. 29791
  17. 287496
  18. 13824
  19. 157464
  20. 175616
  21. 571787
  22. 405224
  23. 85184
  24. 12167
  25. 314432
  26. 9261
  27. 205379
  28. 753571
  29. 50653
  30. 681472
  31. 531441
  32. 140608
  33. 531441
  34. 970299
  35. 300763
  36. 970299
  37. 175616
  38. 166375
  39. 226981
  40. 21952

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