Unit 3 Contents

Use a calculator to help answer these questions.

1. Write the following using exponents. Then find the value of n. Follow the example.
Example: n = 2 2 2 2
2⁴ = 16
1. n = 5 5 5
2. n = 3 3 3 3 3
3. n = 10 10 10
4. n = 7
2. Find n.
1. 2⁴ = n
2. 5³ = n
3. 9² = n
4. 3³ = n
5. 4² = n
6. 6³ = n
7. 10¹⁰ = n
8. 12¹ = n
9. 20² = n
3. Ellen and her father estimated that there were 150,000 leaves in their yard.
1. There are 28 students in Ellen's class. If every student has to rake about 150,000 leaves in their own yards, estimate the number of leaves the entire class must rake. Explain your thinking.
2. There are 20 classrooms in Ellen's school. Each classroom has about the same number of students. Estimate the number of leaves raked by the entire school if every student has to rake about 150,000 leaves.