# Ch 15: TACHS: Estimation in Mathematics

Study for the TACHS test in New York by refreshing your knowledge of estimation in mathematics. You can watch fun video lessons then gauge your comprehension with short lesson quizzes and a chapter exam.

## TACHS: Estimation in Mathematics - Chapter Summary

This overview of estimation in mathematics can help you review concepts you haven't explored in months or years. Watching the video lessons will help ensure that you're prepared for the following on the test:

• Displaying how to solve mathematical problems using estimation
• Showcasing an ability to estimate a difference by rounding
• Using front-end estimation
• Exhibiting your ability to estimate the sum and difference between two decimals

Instructors present the materials with the help of entertaining visual effects that make the studying process fun and engaging. You can watch the lessons from the comfort of your home or on the go via your smartphone or tablet.

### TACHS: Estimation in Mathematics Objectives

The topics in this chapter on estimation in mathematics are covered in the math section of the multiple-choice test. In this section, you will be asked to estimate answers to math problems and compute answers. Use the lessons in this chapter as a way to strengthen your understanding of estimation. You can also use the self-assessment quizzes to reinforce lesson concepts. If you want to revisit specific portions of the videos, use the timelines to identify and skip to key topics within the lessons.

In New York, 8th grade students are required to take the TACHS test if they want to attend one of the Catholic high schools in the Archdiocese of New York or Diocese of Brooklyn/Queens. Students must take the test in November 2015 to attend a school in the 2016-2017 school year.

4 Lessons in Chapter 15: TACHS: Estimation in Mathematics
Test your knowledge with a 30-question chapter practice test
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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