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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 264 · 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. 1.78³ =
  2. 2.18³ =
  3. 3.56³ =
  4. 4.84³ =
  5. 5.13³ =
  6. 6.81³ =
  7. 7.13³ =
  8. 8.41³ =
  9. 9.95³ =
  10. 10.22³ =
  11. 11.77³ =
  12. 12.56³ =
  13. 13.89³ =
  14. 14.58³ =
  15. 15.43³ =
  16. 16.84³ =
  17. 17.97³ =
  18. 18.88³ =
  19. 19.95³ =
  20. 20.79³ =
  21. 21.51³ =
  22. 22.21³ =
  23. 23.61³ =
  24. 24.25³ =
  25. 25.52³ =
  26. 26.76³ =
  27. 27.75³ =
  28. 28.57³ =
  29. 29.77³ =
  30. 30.37³ =
  31. 31.92³ =
  32. 32.19³ =
  33. 33.14³ =
  34. 34.94³ =
  35. 35.19³ =
  36. 36.52³ =
  37. 37.41³ =
  38. 38.78³ =
  39. 39.25³ =
  40. 40.74³ =

Answer key

  1. 474552
  2. 5832
  3. 175616
  4. 592704
  5. 2197
  6. 531441
  7. 2197
  8. 68921
  9. 857375
  10. 10648
  11. 456533
  12. 175616
  13. 704969
  14. 195112
  15. 79507
  16. 592704
  17. 912673
  18. 681472
  19. 857375
  20. 493039
  21. 132651
  22. 9261
  23. 226981
  24. 15625
  25. 140608
  26. 438976
  27. 421875
  28. 185193
  29. 456533
  30. 50653
  31. 778688
  32. 6859
  33. 2744
  34. 830584
  35. 6859
  36. 140608
  37. 68921
  38. 474552
  39. 15625
  40. 405224

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