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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 218 · 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. 1.73³ =
  2. 2.58³ =
  3. 3.92³ =
  4. 4.74³ =
  5. 5.65³ =
  6. 6.18³ =
  7. 7.11³ =
  8. 8.28³ =
  9. 9.21³ =
  10. 10.71³ =
  11. 11.71³ =
  12. 12.22³ =
  13. 13.21³ =
  14. 14.34³ =
  15. 15.13³ =
  16. 16.28³ =
  17. 17.94³ =
  18. 18.52³ =
  19. 19.28³ =
  20. 20.91³ =
  21. 21.92³ =
  22. 22.13³ =
  23. 23.76³ =
  24. 24.34³ =
  25. 25.85³ =
  26. 26.39³ =
  27. 27.77³ =
  28. 28.61³ =
  29. 29.26³ =
  30. 30.18³ =
  31. 31.79³ =
  32. 32.21³ =
  33. 33.45³ =
  34. 34.18³ =
  35. 35.52³ =
  36. 36.42³ =
  37. 37.87³ =
  38. 38.77³ =
  39. 39.61³ =
  40. 40.56³ =

Answer key

  1. 389017
  2. 195112
  3. 778688
  4. 405224
  5. 274625
  6. 5832
  7. 1331
  8. 21952
  9. 9261
  10. 357911
  11. 357911
  12. 10648
  13. 9261
  14. 39304
  15. 2197
  16. 21952
  17. 830584
  18. 140608
  19. 21952
  20. 753571
  21. 778688
  22. 2197
  23. 438976
  24. 39304
  25. 614125
  26. 59319
  27. 456533
  28. 226981
  29. 17576
  30. 5832
  31. 493039
  32. 9261
  33. 91125
  34. 5832
  35. 140608
  36. 74088
  37. 658503
  38. 456533
  39. 226981
  40. 175616

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