Example 5.24 from Prealgebra, 5.2 Decimal Operations

Decimal Operations: example 5.24

Paul received $$50$ for his birthday. He spent $$31.64$ on a video game. How much of Paul’s birthday money was left?

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution

What are you asked to find? How much did Paul have left?

Write a phrase. $50 less $31.64

Translate. $50 - 31.64$

Simplify. 18.36

Write a sentence. Paul has $18.36 left.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Nicole earned $$35$ for babysitting her cousins, then went to the bookstore and spent $$18.48$ on books and coffee. How much of her babysitting money was left?

How did it go?

What are you asked to find?	How much did Paul have left?
Write a phrase.	$50 less $31.64
Translate.	$50 - 31.64$
Simplify.	18.36
Write a sentence.	Paul has $18.36 left.

Solution

Your turn

Solution

Your turn