Ch 10: TACHS: Number Sense & Operations

About This Chapter

If your students need help recalling number sense and operations concepts for the TACHS test, you've come to the right place. Our fun and brief video lessons and quizzes will give your students the practice they need to answer exam questions.

TACHS: Number Sense & Operations - Chapter Summary

Your students' memory of the definition of real numbers and a number line can be refreshed by watching 5-minute video lessons. Their knowledge of the order of operations can be displayed by taking a short quiz. By the end of this chapter, your students will be able to answer test questions based on the following:

  • Kinds of numbers
  • Definition of real numbers, number line, and counting numbers
  • Comparison of decimals and fractions
  • Examples of the order of operations

If you or your students have any questions about the lessons, you can contact our instructors or experts. The process of reviewing the lessons can be easy when the timeline located below each video is utilized. Students also have the option of reading the video transcripts. They include bold vocabulary words that help the student identify the words they need to focus on.

TACHS: Number Sense & Operations Chapter Objectives

The TACHS test is administered to eighth-grade students who are seeking entry to Catholic high schools in the Archdiocese of New York or the Diocese of Brooklyn and Queens. Concepts outlined in this chapter can be seen in the Mathematics portion of the TACHS test. Students may encounter questions that test their ability to demonstrate the connections between different types of numbers. All test questions are in multiple-choice form and will be answered on paper.

6 Lessons in Chapter 10: TACHS: Number Sense & Operations
Test your knowledge with a 30-question chapter practice test
What are the Different Types of Numbers?

1. What are the Different Types of Numbers?

Learn all of the different types of numbers: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. This video lesson teaches you how to classify any numbers you come across.

What are Real Numbers? - Definition & Properties

2. What are Real Numbers? - Definition & Properties

There are many definitions of real numbers, but they all lead to the same conclusion. Real numbers are numbers that have a measurable value. Learn more about real numbers with some examples and a quiz to test your knowledge.

What Is a Number Line?

3. What Is a Number Line?

A number line is a visual representation of all real numbers. In this lesson, we'll learn how to identify points on a number line. We'll also practice addition and subtraction, letting the number line do all the hard work.

Using the Number Line to Compare Decimals, Fractions, and Whole Numbers

4. Using the Number Line to Compare Decimals, Fractions, and Whole Numbers

Watch this video lesson to learn how useful the number line can be when you need to compare two different numbers, be they whole numbers, decimals or even fractions. Learn how to plot these numbers on the number line so you can compare them.

What Is The Order of Operations in Math? - Definition & Examples

5. What Is The Order of Operations in Math? - Definition & Examples

The order of operations is the steps used to simplify any mathematical expression. In this video, learn how to solve problems using these steps and easy tricks to remember them.

Counting Numbers: Definition & Examples

6. Counting Numbers: Definition & Examples

In this lesson, discover the counting numbers (also called natural numbers and positive integers). Explore the many everyday ways we use counting numbers in our lives.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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