Use PEMDAS:
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)
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[tex]100-2^3\times3+8^2\div4\\\\=100-8\times3+64\div4\\\\=100-24+16\\\\=76+16\\\\=\boxed{92}[/tex]