Common Core: 8th Grade Math : Grade 8

Study concepts, example questions & explanations for Common Core: 8th Grade Math

varsity tutors app store varsity tutors android store

Example Questions

Example Question #52 : Expressions & Equations

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #53 : Expressions & Equations

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #91 : Grade 8

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #92 : Grade 8

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #56 : Expressions & Equations

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #57 : Expressions & Equations

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #61 : Expressions & Equations

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #93 : Grade 8

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #63 : Expressions & Equations

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Example Question #94 : Grade 8

Solve and leave your answer in scientific notation:

 

Possible Answers:

Correct answer:

Explanation:

The first step to solving this problem is to combine like terms:

Next, we can solve our two separate multiplication problems starting with the expression on the left:

In order to solve the next expression, we need to recall our exponent rules from a previous lesson:

When our base numbers are equal to each other, like in this problem, we can add our exponents together using the following formula:

Let's apply this rule to our problem:

The question asked us to leave our answer in scientific notation; thus,  is the correct answer. 

Learning Tools by Varsity Tutors