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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 402 · 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. 2.93³ =
  3. 3.85³ =
  4. 4.97³ =
  5. 5.48³ =
  6. 6.51³ =
  7. 7.87³ =
  8. 8.95³ =
  9. 9.48³ =
  10. 10.64³ =
  11. 11.88³ =
  12. 12.89³ =
  13. 13.37³ =
  14. 14.16³ =
  15. 15.36³ =
  16. 16.72³ =
  17. 17.26³ =
  18. 18.76³ =
  19. 19.51³ =
  20. 20.14³ =
  21. 21.86³ =
  22. 22.21³ =
  23. 23.99³ =
  24. 24.41³ =
  25. 25.18³ =
  26. 26.54³ =
  27. 27.78³ =
  28. 28.95³ =
  29. 29.44³ =
  30. 30.53³ =
  31. 31.91³ =
  32. 32.81³ =
  33. 33.31³ =
  34. 34.58³ =
  35. 35.37³ =
  36. 36.97³ =
  37. 37.73³ =
  38. 38.19³ =
  39. 39.13³ =
  40. 40.21³ =

Answer key

  1. 15625
  2. 804357
  3. 614125
  4. 912673
  5. 110592
  6. 132651
  7. 658503
  8. 857375
  9. 110592
  10. 262144
  11. 681472
  12. 704969
  13. 50653
  14. 4096
  15. 46656
  16. 373248
  17. 17576
  18. 438976
  19. 132651
  20. 2744
  21. 636056
  22. 9261
  23. 970299
  24. 68921
  25. 5832
  26. 157464
  27. 474552
  28. 857375
  29. 85184
  30. 148877
  31. 753571
  32. 531441
  33. 29791
  34. 195112
  35. 50653
  36. 912673
  37. 389017
  38. 6859
  39. 2197
  40. 9261

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