Integers & Rational Numbers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What are rational numbers?

Back

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

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |-5| = 5.

Front

How do you compare integers?

Back

To compare integers, use the number line: the further to the right a number is, the greater it is. For example, -3 is less than -1.

Front

What does it mean for a number to be above sea level?

Back

A number above sea level indicates a positive elevation, meaning it is higher than the average sea level.

Front

What does it mean for a number to be below sea level?

Back

A number below sea level indicates a negative elevation, meaning it is lower than the average sea level.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the numbers.

Front

What is the greatest common divisor (GCD)?

Back

The greatest common divisor (GCD) of two or more numbers is the largest number that divides each of the numbers without leaving a remainder.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and find the smallest multiple they have in common.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.