Sunday, February 12, 2012

An Example on how to Write an Expression

An expression is any single number or variable or combination of operations (-, +, x, ÷) involving numbers and variables

A group of students are talking, 2 friends leave the group. Write an expression for the number of the students in the group after the 2 leave.

S- the students expression: S-2
2- the ones that leave

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