Important formulas & tips

Course-wise quick reference sheets • Click any card to access detailed formula vaults for SSC, Banking, Teaching, UPSC, Defense & Skills

Study notes and formula sheets on desk with calculator and stationery
Quick revision resources • Formulas, shortcuts & memory aids for competitive exams
SSC
SSC CGL formula vault
(a+b)² = a²+2ab+b² • Profit% = (profit/CP)×100 • M1D1 = M2D2
SSC
SSC CHSL quick revision
Average = sum/n • SI = PRT/100 • Alphabet positions: A=1, Z=26
SSC
SSC GD constable
Speed = distance/time • Analogy tricks • First in India GK
Teaching
UP LT grade pedagogy
Piaget stages: 0-2,2-7,7-11,12+ • Vygotsky: ZPD • Thorndike's laws
Teaching
CTET Paper I & II
Kohlberg 3 levels • NCF 2005 key points • Inclusive education
Banking
IBPS PO / SBI PO
Successive %: a+b+ab/100 • CI = P(1+r/100)^n - P • Ratio shortcuts
Banking
Bank clerk speed maths
Multiplication tricks • Approximation rules • Number series
Civil
UPSC prelims facts & formulas
Schedules: 12 • FR: Art 14-32 • DPSP: Art 36-51
Civil
State PSC regional facts
Rivers & dams • State symbols • Folk dances
Defense
NDA maths trigonometry
sin²θ+cos²θ=1 • 1+tan²θ=sec²θ • sin(A+B)= sinA cosB + cosA sinB
Defense
CDS general knowledge
UN agencies • Defence exercises • Gallantry awards
Skills
AI & ML cheat sheet
Loss functions • ReLU, sigmoid • Gradient descent
Skills
Python one-liners
list comp: [x**2 for x in range(5)] • lambda: lambda a,b:a+b • swap: a,b=b,a
Skills
DevOps cheat sheet
CI/CD • Docker • Kubernetes • Git • Monitoring & Automation
Skills
DevOps Important Questions
CI/CD • Docker • Kubernetes • Linux • Cloud • Real Interview Q&A
Skills
Networking Complete Guide
OSI Model • TCP/IP • DNS • HTTP/HTTPS • Subnetting • Ports • Load Balancing • Firewalls
Skills
Linux Essentials
Commands • Filesystem • Permissions • Processes • Shell scripting
Skills
Cloud Computing Basics
Compute • Storage • Networking • IAM • Serverless
Skills
Docker & Containers
Images • Containers • Volumes • Networks • Docker Compose
Skills
Kubernetes Essentials
Pods • Deployments • Services • Ingress • Helm
Skills
System Design Fundamentals
Scalability • Load balancing • Caching • Databases • Architecture

About this resource

A curated knowledge base of course-wise formulas, memory aids, and high-yield concepts — designed for last-minute revision and daily practice. Each card leads to a detailed formula sheet with downloadable PDFs.
100+ formulas
Updated for 2026
Free & printable
Mobile friendly
“Perfect for SSC revision” – Amit “CTET pedagogy saved me” – Priya “Banking shortcuts are gold” – Rajesh

Frequently asked questions

Click any course card to open the full formula sheet page for that exam. Each page contains detailed shortcuts, concepts, and downloadable PDFs.
Yes, they are excellent for quick revision after completing the syllabus. Combine with mock tests for best results.
Absolutely! Each course page includes a 'Download PDF' option. We add printable versions regularly.
We add fresh cheat sheets every month. You can request topics via email.
Yes, the entire page adapts perfectly to any screen size — smartphones, tablets, and desktops.