Writing Expressions Involving Addition
To write an expression, you will often have to interpret written phrase. For example , the phrase “4 added to some number” could be written as the expression x + 4, where the variable x represents the unknown number.
Notice that the words “added to” indicate that the operation between 4 and the number is to be addition. Other words and phrases that indicate addition are “more that,” “plus,” and “increased by”. One other word that indicates addition is sum. The sum of two terms is the result of adding them together