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

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.
102 _______
Answer:
102 Given
10 * 10 = 100.00 Evaluate

Texas Go Math Grade 8 Module 2 Answer Key Question 2.
103 _______
Answer:
103 Given
10 * 10 * 10 = 1,000.00 Evaluate

Question 3.
105 _______
Answer:
105 Given
10 * 10 * 10 * 10 * 10 = 100,000 Evaluate

Question 4.
107 _______
Answer:
107 Given
10 * 10 * 10 * 10 * 10 * 10 * 10 = 10,000,000.00 Evaluate

Find each product or quotient.

Question 5.
45.3 Ã— 103
Answer:
45.3 * 103 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· 102
Answer:
7.08 Ã· 102 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— 106
Answer:
0.00235 Ã— 106 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· 104
Answer:
3600 Ã· 104 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— 102
Answer:
0.5 Ã— 102 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· 105
Answer:
67.7 Ã· 105 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— 104
Answer:
0.0057 Ã— 104
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· 106
Answer:
195 Ã· 106 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.

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