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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 755 · 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. 1.27³ =
  2. 2.92³ =
  3. 3.33³ =
  4. 4.81³ =
  5. 5.21³ =
  6. 6.25³ =
  7. 7.23³ =
  8. 8.41³ =
  9. 9.81³ =
  10. 10.99³ =
  11. 11.67³ =
  12. 12.51³ =
  13. 13.19³ =
  14. 14.72³ =
  15. 15.63³ =
  16. 16.26³ =
  17. 17.61³ =
  18. 18.64³ =
  19. 19.61³ =
  20. 20.82³ =
  21. 21.54³ =
  22. 22.74³ =
  23. 23.11³ =
  24. 24.12³ =
  25. 25.56³ =
  26. 26.15³ =
  27. 27.58³ =
  28. 28.11³ =
  29. 29.28³ =
  30. 30.56³ =
  31. 31.85³ =
  32. 32.32³ =
  33. 33.97³ =
  34. 34.64³ =
  35. 35.96³ =
  36. 36.94³ =
  37. 37.36³ =
  38. 38.92³ =
  39. 39.25³ =
  40. 40.36³ =

Answer key

  1. 19683
  2. 778688
  3. 35937
  4. 531441
  5. 9261
  6. 15625
  7. 12167
  8. 68921
  9. 531441
  10. 970299
  11. 300763
  12. 132651
  13. 6859
  14. 373248
  15. 250047
  16. 17576
  17. 226981
  18. 262144
  19. 226981
  20. 551368
  21. 157464
  22. 405224
  23. 1331
  24. 1728
  25. 175616
  26. 3375
  27. 195112
  28. 1331
  29. 21952
  30. 175616
  31. 614125
  32. 32768
  33. 912673
  34. 262144
  35. 884736
  36. 830584
  37. 46656
  38. 778688
  39. 15625
  40. 46656

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