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True true about kids performing at grade level. Actually order of operations is a pre-algebra thing. Algebra is now being taught at (earliest) 7th grade (nyc, not sure if same for anywhere else) so they're going through stuff like that and drilling it in around 5th or 6th grade. i know, cuz my boyfriends younger bro is in 5th grade and called us the other day asking us about questions about this...
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