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According to the rules of the order of operations, we first solve the multiplication exercise:
Now, we solve the addition exercise from left to right:
23
\( 13+5+5= \) ?
Mathematics has a special order called PEMDAS (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction). Multiplication is stronger than addition, so it must be done first!
Do all multiplications first (left to right), then do all additions (left to right). In , there's only one multiplication, so we do that first.
Use the memory trick "Please Excuse My Dear Aunt Sally" for PEMDAS. Focus especially on remembering that multiplication comes before addition!
You'll get the wrong answer! In this problem, working left to right gives 45 instead of the correct answer 23. Always double-check your order of operations.
No, but you can think of it as to help remember that multiplication happens first. The parentheses show the invisible grouping!
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