Sunday, 5 April 2026

 

Bank Exam Squares & Cubes Master – Page 3 (Big Set)

Shortcut Formulas • Fast Calculation • Step-by-Step Solutions


Squares and cubes tricks

🔷 Core Formulas

(a + b)² = a² + 2ab + b²

(a − b)² = a² − 2ab + b²

(a + b)³ = a³ + b³ + 3ab(a+b)

(a − b)³ = a³ − b³ − 3ab(a−b)


🔷 Square Tricks

Q1. 52²

= (50+2)² = 2500 + 200 + 4 = 2704


Q2. 48²

= (50−2)² = 2500 − 200 + 4 = 2304


Q3. 35²

= 3 × 4 = 12 → 1225


Q4. 95²

= 9 × 10 = 90 → 9025


Q5. 105²

= 11025


Q6. 49²

= (50−1)² = 2500 − 100 + 1 = 2401


Q7. 51²

= (50+1)² = 2500 + 100 + 1 = 2601


Q8. 75²

= 7 × 8 = 56 → 5625


Q9. 85²

= 8 × 9 = 72 → 7225


Q10. 115²

= 13,225


🔷 Cube Tricks

Q11. 11³

= 1331


Q12. 12³

= 1728


Q13. 13³

= 2197


Q14. 15³

= 3375


Q15. 20³

= 8000


Q16. 9³

= 729


Q17. 8³

= 512


Q18. 25³

= 15625


Q19. 30³

= 27000


Q20. 18³

= (20−2)³

= 8000 − 2400 + 120 − 8 = 5832


🔥 Topper Tricks

  • Use base (50, 100, 1000)
  • Memorize squares up to 30
  • Use (x±a) method
  • Don’t multiply directly

Final Tip

Recognize Pattern → Apply Formula → Solve Fast

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