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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 76 · 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. 1.25³ =
  2. 2.86³ =
  3. 3.14³ =
  4. 4.64³ =
  5. 5.48³ =
  6. 6.81³ =
  7. 7.55³ =
  8. 8.18³ =
  9. 9.39³ =
  10. 10.91³ =
  11. 11.26³ =
  12. 12.32³ =
  13. 13.11³ =
  14. 14.44³ =
  15. 15.51³ =
  16. 16.79³ =
  17. 17.61³ =
  18. 18.24³ =
  19. 19.33³ =
  20. 20.28³ =
  21. 21.39³ =
  22. 22.63³ =
  23. 23.64³ =
  24. 24.28³ =
  25. 25.48³ =
  26. 26.67³ =
  27. 27.23³ =
  28. 28.85³ =
  29. 29.73³ =
  30. 30.21³ =
  31. 31.88³ =
  32. 32.32³ =
  33. 33.76³ =
  34. 34.79³ =
  35. 35.61³ =
  36. 36.17³ =
  37. 37.18³ =
  38. 38.97³ =
  39. 39.58³ =
  40. 40.88³ =

Answer key

  1. 15625
  2. 636056
  3. 2744
  4. 262144
  5. 110592
  6. 531441
  7. 166375
  8. 5832
  9. 59319
  10. 753571
  11. 17576
  12. 32768
  13. 1331
  14. 85184
  15. 132651
  16. 493039
  17. 226981
  18. 13824
  19. 35937
  20. 21952
  21. 59319
  22. 250047
  23. 262144
  24. 21952
  25. 110592
  26. 300763
  27. 12167
  28. 614125
  29. 389017
  30. 9261
  31. 681472
  32. 32768
  33. 438976
  34. 493039
  35. 226981
  36. 4913
  37. 5832
  38. 912673
  39. 195112
  40. 681472

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