Parentheses are used to designate which operations should be done first when there are multiple operations. Example: 4 – (2 + 1) = 1; the parentheses tell us that we must add 2 and 1, and then subtract the sum from 4, rather than subtracting 2 from 4 and then adding 1 (this would give us an answer of 3).
In this video, we introduce parentheses as a tool for making an expression mean exactly what we want it to mean.
Provided by: Mometrix Test Preparation
Last updated: 02/16/2018
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