Please Excuse My Dear Aunt Sally (PEMDAS), she has the hardest time remembering how to make sense of these arithmetic rules...
Evaluate \[30-(25+(-45)).\]
Evaluate \[10 \times 8-(3 \times 7+10).\]
Evaluate \[3 \times (64-6 \times 4).\]
Evaluate \[-(5-8) \times 15 \div (36 \div 4 + 6).\]
Evaluate \(4 + 7\times(3 + 3)\).
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