Arithmetic Fundamentals
The foundation of all mathematics, arithmetic covers basic operations with numbers. Master these fundamental concepts to build a strong mathematical foundation.
Basic Operations
Understanding addition, subtraction, multiplication, and division with integers, fractions, and decimals.
Fractions & Percentages
Working with rational numbers, percentages, ratios, and proportional relationships.
Exponents & Roots
Working with powers, exponents, square roots, and scientific notation.
Interactive Example: Percentage Calculation
Problem: Calculate 25% of 80 and find what percentage 20 is of 80.
Part = (Percentage / 100) × Whole
Percentage = (Part / Whole) × 100
Solution:
1. 25% of 80 = (25/100) × 80 = 0.25 × 80 = 20
2. 20 is what percentage of 80? = (20/80) × 100 = 0.25 × 100 = 25%
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