Book edition Common Core Edition

Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages 183 pages

ISBN 9780547587776

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Short Answer

Use the distributive property to evaluate the expression.
$5 (7 + 2 + 4)$

$5 (7 + 2 + 4) = 65$ .

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step-1 – What are real numbers?

Real numbers are simply the combination of Whole numbers, Integers, Rational and Irrational numbers in the number system.

Step-2 – Distributive Property of Multiplication

Suppose a, b, and c is three real numbers.

Distributive Property of Multiplication

Property: $a (b + c) = a \cdot b + a \cdot c$

Example: $12 (3 + 4) = 12 \cdot 3 + 12 \cdot 4 = 36 + 48 = 84$

Step-3: Evaluate the expression using the distributive property and mental math.

Distributive Property of Multiplication

Property: $a (b + c) = a \cdot b + a \cdot c$

\begin{array}{l} 5 (7 + 2 + 4) = 5 \cdot 7 + 5 \cdot 2 + 5 \cdot 4 = 35 + 10 + 20 = 65 \\ 5 (7 + 2 + 4) = 65 \end{array}

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Pre-algebra

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Short Answer

Use the distributive property to evaluate the expression.
$5 (7 + 2 + 4)$

Step by Step Solution

Step-1 – What are real numbers?

Step-2 – Distributive Property of Multiplication

Step-3: Evaluate the expression using the distributive property and mental math.

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Pre-algebra

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Short Answer

Use the distributive property to evaluate the expression.5 ( 7 + 2 + 4 )

Step by Step Solution

Step-1 – What are real numbers?

Step-2 – Distributive Property of Multiplication

Step-3: Evaluate the expression using the distributive property and mental math.

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Use the distributive property to evaluate the expression.
$5 (7 + 2 + 4)$