Question 1011637: How does 1+2×3+4×5+6= 33 ?
Answer by josgarithmetic(39616)   (Show Source):
You can put this solution on YOUR website! Your left-side expression, 1+2×3+4×5+6
PEMDAS, Parentheses, Exponents, Multiplication, Division, Addition, Subtraction, those being the order of precedence.
Your precedences start with Multiplications. Do those first.
1+6+20+6
You next have only Additions, and nothing else. Go strictly from left to right.
7+20+6
27+6
33
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