# Ch 15: NES Middle Grades Math: Introduction to Decimals

### About This Chapter

## NES Middle Grades Math - Introduction to Decimals - Chapter Summary

These video lessons teach the fundamentals of decimals, including how to read and write them as well as how to count with them. As you prepare to take the NES Middle Grades Math examination for teacher certification, you can also review the rules for rounding decimals. Examples and graphics are provided that are designed to increase your knowledge. Watching the informational videos could help you with:

- Using and performing calculations with decimals
- Understanding the rules of place values
- Writing decimal numbers using words
- Comparing decimals to determine greatest versus least

All of this chapter's video lessons are taught by expert instructors. Recall what you already comprehend about decimals by viewing the lessons and taking the corresponding quizzes. The animated lessons are short, and they can be accessed around the clock via your mobile technology. You can speed up the review process by studying only what you need to brush up on. You may pause and rewind the videos, or you can use the video tags under the *timeline* link. There, you can locate and quickly jump between each of the videos' main topics.

### NES Middle Grades Math - Introduction to Decimals Objectives

Prove your ability to solve problems with decimals during the first content domain of the four-content domain NES Middle Grades Math examination. Titled *Number Sense and Operations,* the first domain is worth about 17% of the whole assessment score. While you'll also need to know about topics such as algebra and geometry, the material in this chapter is representative of some of the questions you'll find on the examination. Provide your most accurate answers to the computer-based assessment's 150 multiple-choice questions as you attempt to qualify for a middle grades mathematics teaching endorsement. You'll be granted four hours and 15 minutes for completion.

### 1. Working with Decimals

Decimal numbers appear as a number with a period, followed by a series of digits, representing a partial number such as a half (0.5) or a quarter (0.25). Learn how to read and write decimals, and understand the concept of strings of zeros, the size of these numbers, and steps of rounding and scientific notation.

### 2. What is a Decimal Place Value?

In mathematics, decimals provide a shorthand method for writing mixed numbers and fractions to the powers of ten. Learn about decimals and decimal place values, and understand how to read decimals. Recognize that the placement of decimals matters tremendously, so it is vital to ensure the decimal is in the correct place.

### 3. Using Word Names for Decimal Numbers

Decimal numbers can be expressed through words without any digits. See examples of decimals translated as word names, some of which are commonly recognized.

### 4. Comparing and Ordering Decimals

In mathematics, a decimal is a number that includes a whole number and a fraction separated by a decimal point. Learn to recognize numbers that are decimals, and explore how to use decimals to count. Understand how to compare decimals and put them in order from the least decimal to the greatest.

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### Other Chapters

Other chapters within the NES Middle Grades Mathematics (203): Practice & Study Guide course

- About the NES Test
- NES Middle Grades Math: Basic Arithmetic Operations
- NES Middle Grades Math: Solving Word Problems
- NES Middle Grades Math: Money & Consumer Math
- NES Middle Grades Math: Properties of Numbers
- NES Middle Grades Math: Estimating & Rounding
- NES Middle Grades Math: Number Theory
- NES Middle Grades Math: Roots & Radical Expressions
- NES Middle Grades Math: Exponents & Exponential Expressions
- NES Middle Grades Math: Simplifying Expressions
- NES Middle Grades Math: Integers
- NES Middle Grades Math: Rational Numbers
- NES Middle Grades Math: Introduction to Fractions
- NES Middle Grades Math: Operations with Fractions
- NES Middle Grades Math: Operations with Decimals
- NES Middle Grades Math: Percents
- NES Middle Grades Math: Number Patterns & Sequences
- NES Middle Grades Math: Properties of Functions
- NES Middle Grades Math: Graphing Functions
- NES Middle Grades Math: Negative Numbers
- NES Middle Grades Math: Absolute Value
- NES Middle Grades Math: Inequalities
- NES Middle Grades Math: Factoring
- NES Middle Grades Math: Monomials & Polynomials
- NES Middle Grades Math: Writing Algebraic Expressions
- NES Middle Grades Math: Basic Algebraic Expressions
- NES Middle Grades Math: Algebraic Distribution
- NES Middle Grades Math: One-Step Equations
- NES Middle Grades Math: Two-Step Equations
- NES Middle Grades Math: Rational Expressions
- NES Middle Grades Math: The Coordinate Graph
- NES Middle Grades Math: Linear Equations
- NES Middle Grades Math: Systems of Linear Equations
- NES Middle Grades Math: Rates, Ratios & Proportions
- NES Middle Grades Math: Measurement
- NES Middle Grades Math: Perimeter & Area
- NES Middle Grades Math: Polyhedrons & Geometric Solids
- NES Middle Grades Math: Symmetry, Similarity & Congruence
- NES Middle Grades Math: Properties of Lines
- NES Middle Grades Math: Angles
- NES Middle Grades Math: Triangles
- NES Middle Grades Math: Triangle Theorems & Proofs
- NES Middle Grades Math: Similar Polygons
- NES Middle Grades Math: The Pythagorean Theorem
- NES Middle Grades Math: Quadrilaterals
- NES Middle Grades Math: Circles
- NES Middle Grades Math: Circular Arcs & Measurement
- NES Middle Grades Math: Transformations
- NES Middle Grades Math: Data & Graphs
- Reasoning & Data Analysis
- NES Middle Grades Math: Statistics
- NES Middle Grades Math: Data Collection
- NES Middle Grades Math: Samples & Populations
- NES Middle Grades Math: Probability
- NES Middle Grades Math: Sets
- NES Middle Grades Mathematics Flashcards