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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 798 · 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. 1.62³ =
  2. 2.61³ =
  3. 3.55³ =
  4. 4.39³ =
  5. 5.81³ =
  6. 6.67³ =
  7. 7.37³ =
  8. 8.24³ =
  9. 9.25³ =
  10. 10.25³ =
  11. 11.99³ =
  12. 12.21³ =
  13. 13.44³ =
  14. 14.51³ =
  15. 15.96³ =
  16. 16.51³ =
  17. 17.44³ =
  18. 18.74³ =
  19. 19.89³ =
  20. 20.32³ =
  21. 21.34³ =
  22. 22.72³ =
  23. 23.43³ =
  24. 24.87³ =
  25. 25.38³ =
  26. 26.53³ =
  27. 27.78³ =
  28. 28.14³ =
  29. 29.61³ =
  30. 30.33³ =
  31. 31.95³ =
  32. 32.65³ =
  33. 33.26³ =
  34. 34.58³ =
  35. 35.33³ =
  36. 36.54³ =
  37. 37.43³ =
  38. 38.98³ =
  39. 39.84³ =
  40. 40.41³ =

Answer key

  1. 238328
  2. 226981
  3. 166375
  4. 59319
  5. 531441
  6. 300763
  7. 50653
  8. 13824
  9. 15625
  10. 15625
  11. 970299
  12. 9261
  13. 85184
  14. 132651
  15. 884736
  16. 132651
  17. 85184
  18. 405224
  19. 704969
  20. 32768
  21. 39304
  22. 373248
  23. 79507
  24. 658503
  25. 54872
  26. 148877
  27. 474552
  28. 2744
  29. 226981
  30. 35937
  31. 857375
  32. 274625
  33. 17576
  34. 195112
  35. 35937
  36. 157464
  37. 79507
  38. 941192
  39. 592704
  40. 68921

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