CCSS.Math.Content.8.EE.A.3

_________ is an easier way to write large numbers by taking a number between 1 and 10 and multiplying it by 10 raised to a power.

• Scientific Notation
• Direct Variation
• Scale Factor
• Exponents

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CCSS.Math.Content.8.EE.A.3

Cell A=4.2 x 10^-4 
Cell B=2.1 x 10^-5 
Cell C=8.4 x 10^-4

Cell C is ___ larger than cell A.

• 2x
• 20x
• .2x
• 4x

Tags

CCSS.Math.Content.8.EE.A.3

Which is the smallest?
1.3 x 10²⁰
2.9 x 10²¹
9.5 x 10³²
8.4 x 10¹⁹

• 1.3 x 10²⁰
• 2.9 x 10²¹
• 9.5 x 10³²
• 8.4 x 10¹⁹

Tags

CCSS.Math.Content.8.EE.A.3

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4

Tags

CCSS.Math.Content.8.EE.A.3

Which of the following numbers is the least?

• 7 x 10⁸
• 7.1 x 10⁸
• 7 x 10⁹
• 7.1 x 10⁹

Tags

CCSS.Math.Content.8.EE.A.3

There are approximately 3.1 x 10⁸ people in the United States. If each person has 4.1 x 10¹ coins, how many coins are there altogether?

• 1.271 x 10¹⁰
• 1.271 x 10⁹
• 1.271 x 10¹¹
• 1.271 x 10⁸

Tags

CCSS.Math.Content.8.EE.A.3

How would you write 0.0005 in scientific notation?

• 5 x 10^-5
• 5 x 10^-4
• 5 x 10^-3
• .5 x 10³

Tags

CCSS.Math.Content.8.EE.A.3

What is the main reason we sometimes write numbers in scientific notation?

• because it's a shorter way to write really long numbers

• it's the teacher's favorite way

• exponents are always easier than standard form numbers

• because elephants weigh a lot

Tags

CCSS.Math.Content.8.EE.A.3

Which expression represents a number that is larger than 8,000 but smaller than 80,000?

• 8.0 x 10⁴

• 8.0 x 10³

• 7.9 x 10⁴

• 7.8 x 10²

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CCSS.Math.Content.8.EE.A.3

How many times greater is

8.2 x 10⁸ then 200,000

• 41 times greater

• 410 times greater

• 4.1 times greater

• 4,100 times greater

Tags

CCSS.Math.Content.8.EE.A.3