Stage 2 · The Four Operations & Estimation

2.5.2 Parentheses Come First

2.5 Order of Operations & Mental Estimation

Point 2 of 6

2.5.2 Parentheses Come First

Core idea

Parentheses are like a sticky note saying "do this first," so whatever's inside ( ) gets done before anything else.

Module goal. Establish the order of operations with parentheses, and build practical intuition for mental math and estimation.
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