Alg 1 U1 MO2: Number System

Front

Rational Numbers

Back

Front

Irrational Numbers

Back

Front

Integers

Back

Positive and negative whole numbers

EX:

..., -3, -2, -1, 0, 1, 2, 3,...

Front

Whole numbers

Back

Positive numbers starting at 0

EX:

0, 1, 2, 3,...

Front

Natural numbers

Back

Positive numbers starting at 1

EX:

1, 2, 3,....

Front

Real numbers

Back

All numbers

EX: rational, irrational, integers, whole, natural

Front

Always true

Back

R + R = R

R * R = R

Front

Sometimes true

Back

Front

Never true

Back

R + Irr = R

R * Irr = R