In this lesson on negative numbers and absolute value, students are taught how to use negative numbers as they relate to variables on a number line. The concept of opposites is introduced and explained through examples. The absolute value of a number is also discussed, with examples given to demonstrate how to calculate absolute values. Students are then shown how to find the opposite of a number, and how to evaluate expressions involving negative numbers.
Learn how to use negative numbers, especially as they pertain to variables. They are taught using the idea of opposites on a number line. Also, learn about absolute values of numbers.
Having trouble understanding what -x means? Watch this video that helps the beginning Algebra student (or possibly pre-Algebra) understand the meaning of the - sign. Also, learn about absolute values of numbers.