Numbers and Arithmetic
Natural Numbers (N)
Counting numbers starting from 0.
Example: 0, 1, 2, 3, 4
Integers (Z)
Positive numbers, negative numbers, and zero.
Example: -3, -2, -1, 0, 1, 2
Rational Numbers (Q)
Numbers written as fractions of integers.
Example: 1/2, 3/4, 5/1
Real Numbers (R)
All rational and irrational numbers on the number line.
Example: π, 5.75, √2
Multiplication (×)
Combines numbers through repeated addition.
Example: 3 × 4 = 12
Division (/)
Splits a number into equal parts.
Example: 10 / 2 = 5
Exponentiation
Repeated multiplication of a number.
Example: 2³ = 8