Maths Shortcuts Memory Tricks

8 tricks

Compound Interest Shortcut Method

'Net Effect' Method: 2 years r% pe, effective rate = r + r +...

Anchor Method: Nearest 'easy' percentage se start karo. 37% ...

D-D-R-S-C: Difference → Double Difference → Ratio → Squares ...

Successive Discounts a% aur b%: Net discount = a + b − ab/10...

LCM Method: Days ka LCM = Total Work units. Efficiency = Tot...

Alligation Cross: X draw karo. Cheaper top-left, dearer bott...

Approximation: Ugly numbers ko nearby round numbers se repla...

FRACTION TABLE: Ye yaad karo — 80% DI calculations khatam: 1...