Chapter 1.2, Problem 35HP

To determine

Write two different expressions, each with more than one operation, that have a value of 20.

Answer to Problem 35HP

  $\begin{array}{l}\text{first expression:}\left(6\times 3\right)+2\\ \text{second expression:}\left(8\times 5\right)-20\end{array}$

Explanation of Solution

Calculation:

In order to write two different expressions, each with more than one operation, that have a value of 20, for the first expression, first multiply 6 to 3 and then add 2 and for the second expression, first multiply 8 to 5 and then subtract by 20, as shown below:

  $\begin{array}{l}\text{first expression:}\left(6\times 3\right)+2\\ \text{second expression:}\left(8\times 5\right)-20\end{array}$

So, the two different expression is

  $\left(6\times 3\right)+2;\left(8\times 5\right)-20$