Real Numbers-7th Grade

Front

What are Real Numbers?

Back

Real numbers include all the numbers on the number line, including rational and irrational numbers.

Front

What are Rational Numbers?

Back

Rational numbers are numbers that can be expressed as a fraction of two integers, where the denominator is not zero.

Front

What are Irrational Numbers?

Back

Irrational numbers cannot be expressed as a simple fraction; their decimal representation goes on forever without repeating.

Front

What are Natural Numbers?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).

Front

What are Whole Numbers?

Back

Whole numbers are all natural numbers including zero (0, 1, 2, 3, ...).

Front

What are Integers?

Back

Integers are whole numbers that can be positive, negative, or zero (-3, -2, -1, 0, 1, 2, 3, ...).

Front

Is 0 a natural number?

Back

No, 0 is not a natural number; it is a whole number.

Front

Is -4 an integer?

Back

Yes, -4 is an integer.

Front

Is 0.23 a rational number?

Back

Yes, 0.23 is a rational number because it can be expressed as 23/100.

Front

What is an example of an irrational number?

Back

An example of an irrational number is Pi (π), which cannot be expressed as a fraction.