Accommodated Unit 3 Test- Scientific Notation

1. 1. Estimate the following number to the nearest 10 million: 39,802,500

• 41,000,000

• 38,000,000

• 40,000,000

2. 2. Round to thousandths place (3rd number after the decimal) 0.00792398 and then put into scientific notation.

• 7 x 10²²

• 8 × 10^-3

• 8 × 10³

3. 3. Which is greater? (8.6 × 10²²) and 5,028,000,000,000,000,000,000

• (8.6 × 10²²)

• 5,028,000,000,000,000,000,000

4. 4. In September 2013, the Voyager 1 space probe was approximately 1.2 × 10⁹ miles from the Sun. The distance from Earth to the Sun is about 9.3 × 10⁷ miles. Which object is a greater distance from the Sun?

• The distance from Voyager 1 to the sun

• The distance from Earth to the Sun

5. 5. Which expression is equivalent to 6.02 × 10²³ ?

• 0.602 × 10²¹

• 602 × 10²¹

• 60.2 × 10²¹

6. 6. Which number has a greater value?

• 1.8 × 10⁴

• 1.8 × 10⁷

• 1.8 × 10⁵

7. 7. Write 963,000 in scientific notation.

• 963 × 10³

• 9.63 × 10⁴

• 9.63 × 10⁵

8. 8. A paving machine can apply pressure up to 4,250,000 pounds per square inch. What is that number expressed in scientific notation?

• 4.25 × 10⁶

• 4.25 x 10^-6

• 4.25 x 10⁴

9. 9. Write 0.0000963 in scientific notation.

• 9.63 × 10⁵

• 9.63 × 10⁴

• 9.63 × 10^-5

• 963 × 10³

8. 10. Venus is approximately 1.082 × 10⁹ kilometers from the sun. Express that number in standard notation.

• 1.082

• 1,082

• 182,000,000

• 1,082,000,000