How do you evaluate the expression $5 [8 + (3 - 1)] - 2$ $5[8+(3-1)]-2$ ?

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How do you evaluate the expression $5 [8 + (3 - 1)] - 2$ $5[8+(3-1)]-2$ ?

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Answer 1 · 2014-09-29T22:00:40

The order of operations is indicated by the mnemonic device PEMDAS: parentheses (brackets), exponents, multiplication, division, addition, subtraction.

$5[8 + (3 - 1)] - 2$ $"5[8 + (3 - 1)] - 2"$ =
Do the subtraction in parentheses first.

$5[8 + 2] - 2$ $"5[8 + 2] - 2"$ =
Do the addition in brackets next.

$5[10] - 2$ $"5[10] - 2"$ =
Multiply 5 x 10 next.

$50 - 2$ $"50 - 2"$ =
Do the subtraction.

$48$ $"48"$

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How do you evaluate the expression $5 [8 + (3 - 1)] - 2$ $5[8+(3-1)]-2$ ?

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