Refer to ourÂ Texas Go Math Grade 8 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 8 Module 2 Answer Key Scientific Notation.

## Texas Go Math Grade 8 Module 2 Answer Key Scientific Notation

**Essential Question**

How can you use scientific notation to solve real-world problems?

**Texas Go Math Grade 8 Module 2 Are You Ready? Answer Key**

**Complete these exercises to review skills you will need for this chapter.**

**Write each exponential expression as a simplified number.**

Question 1.

10^{2} _______

Answer:

10^{2} Given

10 * 10 = 100.00 Evaluate

**Texas Go Math Grade 8 Module 2 Answer Key Question 2.**

10^{3} _______

Answer:

10^{3} Given

10 * 10 * 10 = 1,000.00 Evaluate

Question 3.

10^{5} _______

Answer:

10^{5} Given

10 * 10 * 10 * 10 * 10 = 100,000 Evaluate

Question 4.

10^{7} _______

Answer:

10^{7} Given

10 * 10 * 10 * 10 * 10 * 10 * 10 = 10,000,000.00 Evaluate

**Find each product or quotient.**

Question 5.

45.3 Ã— 10^{3}

Answer:

45.3 * 10^{3} Identify the number of zeros in the power of 10

45.3 * 1,000 When multiplying, move the decimal point to the right the same number of places as the number of zeros

45,300

Question 6.

7.08 Ã· 10^{2}

Answer:

7.08 Ã· 10^{2} Identify the number of zeros in the power of 10

7.08 Ã· 100 When dividing, move the decimal point to the left the same number of places as the number of zeros.

0.0708

**Texas Go Math 8th Grade Module 2 Answer Key Question 7.**

0.00235 Ã— 10^{6}

Answer:

0.00235 Ã— 10^{6} Identify the number of zeros in the power of 10

0.00235 Ã— 1,000, 000 When multiplying, move the decimal point to the right the same number of places as the number of zeros

2,350

Question 8.

3,600 Ã· 10^{4}

Answer:

3600 Ã· 10^{4} Identify the number of zeros in the power of 10

3600 Ã· 10000 When dividing, move the decimal point to the left the same number of places as the number of zeros.

0.36

Question 9.

0.5 Ã— 10^{2}

Answer:

0.5 Ã— 10^{2} Identify the number of zeros in the power of 10

0.5 Ã— 100 When multiplying, move the decimal point to the right the same number of places as the number of zeros

50

Question 10.

67.7 Ã· 10^{5}

Answer:

67.7 Ã· 10^{5} Identify the number of zeros in the power of 10

67.7 Ã· 100000 When dividing, move the decimal point to the left the same number of places as the number of zeros.

0.000677

**Texas Go Math Grade 8 Module 2 Question 11.**

0.0057 Ã— 10^{4}

Answer:

0.0057 Ã— 10^{4}

Identify the number of zeros in the power of 10

0.0057 Ã— 10,000 When multiplying, move the decimal point to the right the same number of places as the number of zeros

57

Question 12.

195 Ã· 10^{6}

Answer:

195 Ã· 10^{6} Identify the number of zeros in the power of 10

195 Ã· 1000000 When dividing, move the decimal point to the left the same number of places as the number of zeros.

0.000195

**Texas Go Math Grade 8 Module 2 Reading Start-Up Answer Key**

**Visualize Vocabulary**

**Use the âœ“ words to complete the Venn diagram. You can put more than one word in each section of the diagram.**

**Understand Vocabulary**

**Complete the sentences using the preview words.**

Question 1.

A number produced by raising a base to an exponent is a _______

Answer:

A number produced by raising a base to an exponent is a __power__.

**Texas Go Math Grade 8 Module 2 Pdf Question 2.**

____ is a method of writing very large or very small numbers by using powers of 10.

Answer:

__Scientific notation__ is a method of writing very large or very small numbers by using powers of 10.

Question 3.

A ____ is any number that can be expressed as a ratio of two integers.

Answer:

A __rational number__ is any number that can be expressed as a ratio of two integers.