Table of contents

0. Review of Algebra4h 16m
1. Equations & Inequalities3h 18m
2. Graphs of Equations43m
3. Functions2h 17m
4. Polynomial Functions1h 44m
5. Rational Functions1h 23m
6. Exponential & Logarithmic Functions2h 28m
7. Systems of Equations & Matrices4h 6m
8. Conic Sections2h 23m
9. Sequences, Series, & Induction1h 19m
10. Combinatorics & Probability1h 45m

0. Review of Algebra

Exponents

College Algebra

0. Review of Algebra

Exponents

1:07 minutes

Problem 103

Textbook Question

Add or subtract as indicated. 18 - 2.789

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Basic Arithmetic Operations

Basic arithmetic operations include addition, subtraction, multiplication, and division. In this context, subtraction is the operation being performed, where one number is taken away from another. Understanding how to execute these operations accurately is fundamental in solving mathematical problems.

Decimal Numbers

Decimal numbers are numbers that include a decimal point, representing values less than one. They are essential in precise calculations, especially in real-world applications like finance. When performing operations with decimal numbers, it is crucial to align the decimal points to ensure accuracy.

Order of Operations

The order of operations is a set of rules that dictates the sequence in which mathematical operations should be performed to ensure consistent results. While this specific problem involves only subtraction, understanding the order of operations is vital when multiple operations are present, as it affects the outcome of calculations.