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## Basic Arithmetic

Please Excuse My Dear Aunt Sally (PEMDAS), she has the hardest time remembering how to make sense of these arithmetic rules...

#### Challenge Quizzes

Evaluate $50-13 \times 3+20+7 \times 5.$

Evaluate $33 \div 11 \times 6 + 21 - 15 \div 5.$

Evaluate $-3 + 8 \div 5 \div 4 \times 10 + 7.$

What is the value of $4 \times 8 \div 4 \times 4 ?$

Evaluate $45+7 \times 3+5-7 \times 4.$

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