Chapter 1.5, Problem 29PPE

To determine

To Evaluate: The expression $23+42+37$ using the properties of numbers. Name the property used in each step.

Answer to Problem 29PPE

The value of expression $23+42+37$ is $102$

Explanation of Solution

Given:

The expression $23+42+37$

Concept Used:

According to the commutative property of addition,

For any two numbers $a$ and $b$ we have

  $a+b=b+a$

Calculation:

For the expression $23+42+37$

  $\begin{array}{c}23+42+37=23+37+42\text{ Commutative Property }a+b=b+a\\ =60+42\text{ Substitution}\\ =102\text{ Substitution}\end{array}$

Therefore, the value of expression $23+42+37$ is

  $102$

Conclusion:

The value of expression $23+42+37$ is $102$