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

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

Essential Question
How can you use scientific notation to solve real-world problems? Complete these exercises to review skills you will need for this chapter.

Write each exponential expression as a simplified number.

Question 1.
102 _______
102 Given
10 * 10 = 100.00 Evaluate

Question 2.
103 _______
103 Given
10 * 10 * 10 = 1,000.00 Evaluate

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

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

Find each product or quotient.

Question 5.
45.3 × 103
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 ÷ 102
7.08 ÷ 102 Identify the number of zeros in the power of 10
7.08 ÷ 100 When dividing, move the decimal point to the left the same number of places as the number of zeros.
0.0708

Question 7.
0.00235 × 106
0.00235 × 106 Identify the number of zeros in the power of 10

0.00235 × 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 ÷ 104
3600 ÷ 104 Identify the number of zeros in the power of 10

3600 ÷ 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 × 102
0.5 × 102 Identify the number of zeros in the power of 10
0.5 × 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 ÷ 105
67.7 ÷ 105 Identify the number of zeros in the power of 10
67.7 ÷ 100000 When dividing, move the decimal point to the left the same number of places as the number of zeros.
0.000677

Question 11.
0.0057 × 104
0.0057 × 104
Identify the number of zeros in the power of 10
0.0057 × 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 ÷ 106
195 ÷ 106 Identify the number of zeros in the power of 10
195 ÷ 1000000 When dividing, move the decimal point to the left the same number of places as the number of zeros.
0.000195

Visualize Vocabulary

Use the ✓ 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 _______