Chapter 1: Q22. (page 20)

Evaluate the following expression and name the property used in each step:
$3 .25 + 2 .2 + 5 .4 + 10 .75$

Short Answer

Expert verified

The value of the expression is: $3 .25 + 2 .2 + 5 .4 + 10 .75 = 21 .6$ .

Step by step solution

Step 1. Given information.

The given expression is:

$3.25 + 2.2 + 5.4 + 10.75$

Step 2. Write the concept.

The substitution property for multiplication, addition, and subtraction is:

$\begin{matrix} a \cdot b = c \\ a \div b = c \\ a \pm b = c \end{matrix}$

The commutative property is:

$a + b = b + a$

The Associative property is:

$a + (b + c) = (a + b) + c$

Step 3. Evaluate the expression.

The expression can be solved below:

$\begin{array}{l} 3.25 + 2.2 + 5.4 + 10.75 = (3.25 + 10.75) + 2.2 + 5.4 [Commutative Property] \\ = (14.00) + 2.2 + 5.4 [Substitution Property] \\ = (14 + 2.2) + 5.4 [Associative Property] \\ = 16.2 + 5.4 [Substitution Property] \\ = 21.6 [Substitution Property] \end{array}$

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Evaluate the following expression and name the property used in each step:
$3 .25 + 2 .2 + 5 .4 + 10 .75$

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Write the concept.

Step 3. Evaluate the expression.

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Evaluate the following expression and name the property used in each step:3.25+2.2+5.4+10.75

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Write the concept.

Step 3. Evaluate the expression.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Discrete Mathematics

Logic and Functions

Calculus

Theoretical and Mathematical Physics

Statistics

Mechanics Maths

Study anywhere. Anytime. Across all devices.

Evaluate the following expression and name the property used in each step:
$3 .25 + 2 .2 + 5 .4 + 10 .75$