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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 170 · 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. 1.67³ =
  2. 2.15³ =
  3. 3.47³ =
  4. 4.95³ =
  5. 5.26³ =
  6. 6.21³ =
  7. 7.64³ =
  8. 8.95³ =
  9. 9.56³ =
  10. 10.81³ =
  11. 11.43³ =
  12. 12.16³ =
  13. 13.91³ =
  14. 14.99³ =
  15. 15.74³ =
  16. 16.57³ =
  17. 17.13³ =
  18. 18.57³ =
  19. 19.55³ =
  20. 20.87³ =
  21. 21.12³ =
  22. 22.96³ =
  23. 23.82³ =
  24. 24.18³ =
  25. 25.99³ =
  26. 26.17³ =
  27. 27.25³ =
  28. 28.84³ =
  29. 29.29³ =
  30. 30.85³ =
  31. 31.99³ =
  32. 32.58³ =
  33. 33.79³ =
  34. 34.56³ =
  35. 35.97³ =
  36. 36.53³ =
  37. 37.62³ =
  38. 38.48³ =
  39. 39.47³ =
  40. 40.91³ =

Answer key

  1. 300763
  2. 3375
  3. 103823
  4. 857375
  5. 17576
  6. 9261
  7. 262144
  8. 857375
  9. 175616
  10. 531441
  11. 79507
  12. 4096
  13. 753571
  14. 970299
  15. 405224
  16. 185193
  17. 2197
  18. 185193
  19. 166375
  20. 658503
  21. 1728
  22. 884736
  23. 551368
  24. 5832
  25. 970299
  26. 4913
  27. 15625
  28. 592704
  29. 24389
  30. 614125
  31. 970299
  32. 195112
  33. 493039
  34. 175616
  35. 912673
  36. 148877
  37. 238328
  38. 110592
  39. 103823
  40. 753571

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