Scientific Notation Test

Write the answer in scientific notation.
4.1 x 10⁵ +   5.5 x 10⁶  =

• 5.91 x 10⁶
• 9.6 x 10⁵
• 9.6 x 10¹¹
• 4.65 x 10⁵

(7.2 x 10⁶)  -  (3.4 x 10⁶)

• 3.8x10⁶
• 7.7x10⁶
• 3.7x 10⁶
• 3.9x10⁶

Tags

CCSS.8.EE.A.4

Find the difference of:
(8.4 x 10^5) and   (4.6 x 10^5)

• 3.8 x 10^5
• 3.88 x 10^5
• 3.9 x 10^5
• 3.7 x 10^5

When adding or subtracting in scientific notation, what needs to be the same before you can solve it?

• Coefficients

• Variables

• Exponents

• None of these

(6 × 10⁶) - (9.9 × 10⁴)

• 59 × 10⁶
• 5.901 × 10⁶
• -4 × 10²
• None of these

Add.
(8.31 x 10^-2) + (1.1 x 10²)

• 8.30899 x 10⁷
• 1.31101 x 10^-3
• 8.31101 x 10⁷
• 1.100831 x 10²

The population of Cherokee County is 5.6 x 10³. The population of Cedar Bluff is 1.3 x 10². How many more people are there in Cherokee County than Cedar Bluff?

• 57.4 x 10³
• 5047
• 5,470
• 5.47

Tags

CCSS.6.EE.A.1

CCSS.6.EE.B.7

CCSS.6.NS.B.3

Select the equivalent expression 
8⁰

• 0
• -8
• 8
• 1

¨In 2010, USA had 2.31 x10⁵ iPhone users. That same year, Europe had 1.49 x 10⁴ iPhone users. How many iPhone users did the USA and Europe have combined? 

• 3.8 x 10⁵
• 2.08 x 10⁵
• 1.55 x 10¹
• None of these

Tags

CCSS.6.EE.A.1

CCSS.6.NS.B.3

Solve

(6.2 x 10²) + (9.7 x 10⁰)

• .6297 x 10²

• 6.297 x 10⁰

• 6.297 x 10³

• 6.297 x 10²