Rational Numbers Semester Review

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction.

Front

How do you represent a debt using integers?

Back

A debt is represented as a negative integer. For example, if you owe $254, it is represented as -$254.

Front

What does the inequality sign '>' mean?

Back

The '>' sign means 'greater than'. It is used to compare two numbers.

Front

What does the inequality sign '<' mean?

Back

The '<' sign means 'less than'. It is used to compare two numbers.

Front

How do you calculate a percentage discount?

Back

To calculate a percentage discount, multiply the original price by the discount percentage (as a decimal) and subtract that amount from the original price.

Front

What is the result of -8 > -9?

Back

This statement is true because -8 is greater than -9 on the number line.

Front

What is the result of 21 > -21?

Back

This statement is true because 21 is greater than -21 on the number line.

Front

If a burger costs $7.35 and has a 30% discount, how much do you pay?

Back

You pay $5.15 after applying the 30% discount.

Front

What is the absolute value of -3?

Back

The absolute value of -3 is 3, as it represents the distance from zero on the number line.