Types of Numbers

Front

What are irrational numbers?

Back

Numbers that cannot be written as fractions. Decimals that do NOT terminate or repeat. Non-perfect square roots like the square root of 5.

Front

What are rational numbers?

Back

Numbers that CAN be written as fractions. Decimals that DO terminate or repeat—perfect square roots, like the square root of 9.

Front

What are natural numbers?

Back

The set of positive integers starting from 1, 2, 3, and so on. They are used for counting.

Front

What are whole numbers?

Back

The set of natural numbers including zero. They are non-negative integers.

Front

What are integers?

Back

The set of whole numbers and their negative counterparts, including zero. They can be positive, negative, or zero.

Front

Is the number √2 rational or irrational? Why?

Back

√2 is an irrational number because it cannot be an integer.

Front

Is 8 a rational number?

Back

Yes!

Front

Is 1/2 a rational number?

Back

Yes, it is rational.

Front

Back

rational

Front

Back

Rational, because it simplifies to 10.