Classifying Real Numbers

Real numbers are like a big group that includes all the numbers you can think of. There are 5 groups:

1. Natural Numbers (N)

2. Whole Numbers (W)

3. Integers (Z)

4. Rational Numbers (Q)

5. Irrational Numbers (I)

Real Numbers (R)

Multiple Select

Which of these numbers are in the real number family?

• Whole

• Natural

• Rational

• Irrational

• Integers

These are the numbers you use to count things like apples or friends. They start at 1 and go on forever.

So, it's like 1, 2, 3, 4, and so on.

Natural Numbers (N)

Multiple Select

Which of these numbers are natural numbers?

• 1

• 0

• -2

• 100

Whole numbers are just like natural numbers, but they also include the number 0.

So, it's 0, 1, 2, 3, 4, and so on.

Whole Numbers (W)

Multiple Select

Which of these numbers are whole numbers?

• 1

• 0

• -2

• 100

Integers are positive and negative whole numbers, including 0.

So, it's like -3, -2, -1, 0, 1, 2, 3, and so on.

Integers (Z)

Multiple Select

Which of these numbers are integers?

• 69

• 0

• -2

• -2.5

These are numbers that can be written as fractions. For example, 1/2, 3/4, and -2/5 are rational numbers. Decimals that repeat or terminate (like 0.5 or 0.333...) are also rational numbers.

Rational (Q)

Multiple Select

Which of these numbers are rational?

• $$\frac{5}{6}$$

• 0

• -420

• -2.5

Irrational (I)

Multiple Select

Which of these numbers are irrational?

• 
  $$-\frac{5}{8}$$

• 
  $$\pi$$

• $$\sqrt[]{3}$$

• 0

Multiple Select

The number 0 is which kind of number?

• Whole

• Natural

• Real

• Rational

Multiple Select

The number -7 is which kind of number?

• Whole

• Integer

• Real

• Rational

Multiple Select

The number $$\pi$$ is which kind of number?

• Natural

• Irrational

• Real

• Rational

Multiple Choice

The number $$-\frac{5}{9}$$ is which kind of number?

• Natural

• Irrational

• Integer

• Rational

Multiple Choice

The number $$7.94$$ is which kind of number?

• Natural

• Irrational

• Integer

• Rational

Multiple Select

The number $$-56$$ is which kind of number?

• Natural

• Irrational

• Integer

• Rational