In the following exercises, use the strategy for...

In the following exercises, use the strategy for applications to solve.

Spending money Brenda got $\$ 40$ from the ATM. She spent $\$ 15.11$ on a pair of earrings. How
much money did she have left?

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Key Concepts

Problem Solving Strategy

A systematic problem solving strategy includes reading the problem carefully, identifying the key information, choosing the appropriate arithmetic operations, and then executing the steps methodically. This approach ensures that the solution is both accurate and applicable to the real-world context described in the problem.

Subtraction

Subtraction is a fundamental arithmetic operation used to determine the difference between two values. In application problems, it is used to calculate the remaining amount after a certain quantity has been removed, which is crucial in understanding everyday transactions and financial decisions.

Decimal Arithmetic

Decimal arithmetic involves performing operations with numbers that include decimal points, which is essential for accurately representing and calculating monetary amounts. This concept ensures precision when dealing with dollars and cents in real-life scenarios.

Application Word Problems

Application word problems require converting a real-world situation into a mathematical model. This involves identifying relevant numerical information, setting up an equation based on the context, and then solving the equation to interpret the result in terms of the original situation.

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