Hw Scientific Notation 3h3oe

NAME _____________________________________________ DATE ____________________________ PERIOD _____________

Lesson 4 Homework Practice Scientific Notation Express each number in standard decimal notation form. 1. 9.03 × 102

3. 4.115 × 105

5. 5.1 × 10−2

7. 3.85 × 10−4

Express each number in scientific notation. 9. 4,400

11. 69,900,000

13. 0.084

15. 0.000000515

17. Which number is greater: 3.5 × 104 or 2.1 × 106 ? 18. Which number is less: 7.2 × 107 or 9.9 × 105 ?

19. The table lists the populations of five countries. List the countries from least to greatest population.

Country Australia

Population 2 × 107

Brazil

1.9 × 108

Egypt

7.7 × 107

Luxembourg

4.7 × 105

Singapore

4.4 × 106

20. Pluto is 3.67 ×109 miles from the Sun. Write this number in standard decimal notation form.

21. One centimeter is equal to about 0.0000062 mile. Write this number in scientific notation.

22. In 2005, Hurricane Katrina caused over $125 billion in damage in the southern United States. Write $125 billion in scientific notation.

Course 3 • Chapter 1 Real Numbers