WEBVTT

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Here is the problem: 9 minus 8 plus (2 times 10).

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Evaluate a numerical expression.

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Read the expression.

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Evaluate using the order of operations (parentheses, exponents, multiplication and division, addition and subtraction).

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So the answer is 21.

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Operations are applied in the standard order: parentheses, exponents, multiplication and division from left to right, then addition and subtraction from left to right.

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Decimal value: 21.