These worksheets will give your students a review of calculating the value of logarithmic expressions.

We have come across logarithm many times in our calculations now; hence, showcasing its overall importance. However, the greater the importance, the better you must learn. Also, it's best that you avoid using calculators in some areas of log for faster calculation. A logarithm is basically the power to which a base of 10 must be raised for obtaining a number. Let's solve two examples manually. 1. Firstly, using log10 log [to the base 10]. log10 100 = 2 is same as 102 = 100. Now, 1 is the base, 2 is the power, and 100 is the number, which is your answer. 2. If we replace 10 with the base e, then it becomes a natural log. Thus, the example, by using natural logs, finds all numbers with 5 significant figures. ln 30 = 3.4012 is equivalent to e3.4012 = 30.

In general, when we are calculating the value of logs we will use a calculator. They can be computed by hand, but they are very time consuming. Logarithms consist of two main parts the argument and the base. The base is the subscript value to the log and the argument is the number that follows. You start calculating a log by dividing the argument by the base. You then divide that result over and over until reach one. The number of times that you needed to divide to reach this value is the value of the logarithm. These worksheets explain how to calculate the value of logarithmic expressions. Though the formulas have been provided, students should already be familiar with the material.



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Determine the Value of Logarithms Worksheets

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Calculate the Value of a Logarithm Lesson and Practice

Students will practice calculating the final value of: log2 81 + log2 49. A sample problem is solved and two practice problems are provided.

Worksheet

Students will calculate the end value of logarithms. Ten problems are provided.

Practice

Students will get more reps with this skill. Ten problems are provided.

Review and Practice

This worksheet will run students through a wide variety of these types of problems. There is a completed example for you and six practice problems are provided.

Quiz

Students demonstrate their proficiency when calculating the value of logarithms. Ten problems are provided.

Skills Check

This is a worksheet that makes for a nice introduction or review as an entire class.

Determine the Value of a Logarithm Lesson and Practice

Students are worked through the problem: log12 144. We convert it through a mixed format.

Worksheet

Students will determine the end value of the ten problems that are provided.

Practice

This series of problems will help you better understand the skills.

Review and Practice

This worksheet reviews how to convert values to exponential form and simplify from there. A sample problem is solved and six practice problems are provided.

Quiz

Students demonstrate their ability with this skill. Ten problems are provided.

Topic Check

This topic will get you through a series of practice problems.

Express as a Single Logarithm Lesson and Practice

Students will express two logarithms as a single logarithm. A sample problem is solved and two practice problems are provided.

Worksheet

We work on how we process these skills. Ten problems are provided.

Practice

Students will express multiple logarithms as a single expression. Ten problems are provided.

Review and Practice

This worksheet will basically teach you how to reduce these types of problems. A sample problem is solved and six practice problems are provided.

Quiz

Students demonstrate their proficiency with the series of exercises that we learned previously. Ten problems are provided.

Check

A nice way to review and introduce this skill to students.