Class 8 Maths – Chapter 12
Exponents & Powers
STEP 10: Mind Map & Easy Memory Tricks

🧠 Mind Map – Key Points
• Exponent = repeated multiplication
• Same base × → add powers
• Same base ÷ → subtract powers
• (aᵐ)ⁿ → multiply powers
• a⁰ = 1
• a⁻ⁿ = 1 / aⁿ
• Powers of 10 for big numbers

🪄 Easy Memory Trick – “AMSZNP”
A → Add powers (same base)
M → Multiply powers (power of power)
S → Subtract powers (division)
Z → Zero power = 1
N → Negative power → reciprocal
P → Powers of 10

🎯 1-Minute Revision Tip
Close book → recall laws → write 2 examples → done!

⭐ Exam Confidence Booster:
“If laws are clear, Exponents chapter is EASY!”