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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 202 · 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. 1.88³ =
  2. 2.58³ =
  3. 3.32³ =
  4. 4.25³ =
  5. 5.37³ =
  6. 6.98³ =
  7. 7.61³ =
  8. 8.13³ =
  9. 9.25³ =
  10. 10.44³ =
  11. 11.86³ =
  12. 12.95³ =
  13. 13.32³ =
  14. 14.81³ =
  15. 15.91³ =
  16. 16.58³ =
  17. 17.95³ =
  18. 18.25³ =
  19. 19.82³ =
  20. 20.72³ =
  21. 21.25³ =
  22. 22.37³ =
  23. 23.74³ =
  24. 24.35³ =
  25. 25.46³ =
  26. 26.16³ =
  27. 27.53³ =
  28. 28.56³ =
  29. 29.88³ =
  30. 30.82³ =
  31. 31.17³ =
  32. 32.68³ =
  33. 33.76³ =
  34. 34.91³ =
  35. 35.69³ =
  36. 36.33³ =
  37. 37.32³ =
  38. 38.65³ =
  39. 39.59³ =
  40. 40.16³ =

Answer key

  1. 681472
  2. 195112
  3. 32768
  4. 15625
  5. 50653
  6. 941192
  7. 226981
  8. 2197
  9. 15625
  10. 85184
  11. 636056
  12. 857375
  13. 32768
  14. 531441
  15. 753571
  16. 195112
  17. 857375
  18. 15625
  19. 551368
  20. 373248
  21. 15625
  22. 50653
  23. 405224
  24. 42875
  25. 97336
  26. 4096
  27. 148877
  28. 175616
  29. 681472
  30. 551368
  31. 4913
  32. 314432
  33. 438976
  34. 753571
  35. 328509
  36. 35937
  37. 32768
  38. 274625
  39. 205379
  40. 4096

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