Finding the midpoint when rounding or estimating. https://youtu.be/S0q9pyvac_M?si=Gj0iXa8L091_T4mb https://youtu.be/vzxlDzQRLz0?si=mWyJ7SJG8g5SSunV https://youtu.be/vzxlDzQRLz0?si=IpaoSZlFzAlAMOYJ
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