Rational numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Tags

CCSS.5.NBT.A.2

Front

Are all whole numbers rational numbers?

Back

Yes, every whole number is a rational number because it can be expressed as a fraction with a denominator of 1.

Front

What are integers?

Back

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

Front

Can a rational number be a negative number?

Back

Yes, rational numbers can be negative, such as -1/2 or -3.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions and have non-repeating, non-terminating decimal expansions.

Front

Is the number 0 a rational number?

Back

Yes, 0 is a rational number because it can be expressed as 0/1.

Tags

CCSS.HSN.RN.B.3

Front

Classify the number 17/10.

Back

17/10 is a rational number.

Front

What is the decimal representation of 1/4?

Back

The decimal representation of 1/4 is 0.25.

Front

Is every integer a rational number?

Back

Yes, every integer is a rational number because it can be expressed as a fraction with a denominator of 1.

Front

Classify the number -23.

Back

-23 is a rational number and also an integer.