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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 178 · 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. 1.69³ =
  2. 2.71³ =
  3. 3.51³ =
  4. 4.24³ =
  5. 5.74³ =
  6. 6.66³ =
  7. 7.99³ =
  8. 8.96³ =
  9. 9.22³ =
  10. 10.48³ =
  11. 11.26³ =
  12. 12.35³ =
  13. 13.82³ =
  14. 14.85³ =
  15. 15.87³ =
  16. 16.36³ =
  17. 17.32³ =
  18. 18.54³ =
  19. 19.92³ =
  20. 20.22³ =
  21. 21.63³ =
  22. 22.52³ =
  23. 23.62³ =
  24. 24.35³ =
  25. 25.91³ =
  26. 26.48³ =
  27. 27.16³ =
  28. 28.18³ =
  29. 29.17³ =
  30. 30.88³ =
  31. 31.58³ =
  32. 32.38³ =
  33. 33.65³ =
  34. 34.94³ =
  35. 35.87³ =
  36. 36.71³ =
  37. 37.88³ =
  38. 38.93³ =
  39. 39.64³ =
  40. 40.91³ =

Answer key

  1. 328509
  2. 357911
  3. 132651
  4. 13824
  5. 405224
  6. 287496
  7. 970299
  8. 884736
  9. 10648
  10. 110592
  11. 17576
  12. 42875
  13. 551368
  14. 614125
  15. 658503
  16. 46656
  17. 32768
  18. 157464
  19. 778688
  20. 10648
  21. 250047
  22. 140608
  23. 238328
  24. 42875
  25. 753571
  26. 110592
  27. 4096
  28. 5832
  29. 4913
  30. 681472
  31. 195112
  32. 54872
  33. 274625
  34. 830584
  35. 658503
  36. 357911
  37. 681472
  38. 804357
  39. 262144
  40. 753571

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