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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 832 · 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. 2.87³ =
  3. 3.58³ =
  4. 4.46³ =
  5. 5.75³ =
  6. 6.48³ =
  7. 7.24³ =
  8. 8.58³ =
  9. 9.94³ =
  10. 10.17³ =
  11. 11.49³ =
  12. 12.95³ =
  13. 13.73³ =
  14. 14.95³ =
  15. 15.55³ =
  16. 16.16³ =
  17. 17.69³ =
  18. 18.32³ =
  19. 19.91³ =
  20. 20.18³ =
  21. 21.32³ =
  22. 22.88³ =
  23. 23.54³ =
  24. 24.38³ =
  25. 25.45³ =
  26. 26.31³ =
  27. 27.26³ =
  28. 28.12³ =
  29. 29.52³ =
  30. 30.74³ =
  31. 31.61³ =
  32. 32.54³ =
  33. 33.92³ =
  34. 34.94³ =
  35. 35.16³ =
  36. 36.31³ =
  37. 37.56³ =
  38. 38.44³ =
  39. 39.51³ =
  40. 40.89³ =

Answer key

  1. 262144
  2. 658503
  3. 195112
  4. 97336
  5. 421875
  6. 110592
  7. 13824
  8. 195112
  9. 830584
  10. 4913
  11. 117649
  12. 857375
  13. 389017
  14. 857375
  15. 166375
  16. 4096
  17. 328509
  18. 32768
  19. 753571
  20. 5832
  21. 32768
  22. 681472
  23. 157464
  24. 54872
  25. 91125
  26. 29791
  27. 17576
  28. 1728
  29. 140608
  30. 405224
  31. 226981
  32. 157464
  33. 778688
  34. 830584
  35. 4096
  36. 29791
  37. 175616
  38. 85184
  39. 132651
  40. 704969

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