Comparing and Ordering Numbers in Scientific Notation

Which is the largest?
4.8 x 10^-6
3.1 x 10^-4
9.2 x 10^-5
5.9 x 10^-5

• 4.8 x 10^-6
• 3.1 x 10^-4
• 9.2 x 10^-5
• 5.9 x 10^-5

Which one of these is in order from least to greatest?

• 2.4 x 10²,  3.6 x 10^-2 ,  6.9x 10^-3 ,  
•  6.9x 10^-3 , 3.6 x 10^-2,  2.4 x 10²

Order the following from greatest to least:

5 x 10³

3.2 x 10⁸

1.2 x 10⁸

7 x 10⁵

• 7 x 10⁵ , 5 x 10³, 3.2 x 10⁸, 1.2 x 10⁸

• 3.2 x 10⁸, 1.2 x 10⁸, 7 x 10⁵, 5 x 10³

• 1.2 x 10⁸, 3.2 x 10⁸, 5 x 10³, 7 x 10⁵

• 3.2 x 10⁸, 1.2 x 10⁸, 5 x 10³, 7 x 10⁵

Place the following numbers in order from least to greatest:

7.8 x 10⁶, 5.1 x 10⁴,

1.25 x 10⁵, 4.09 x 10⁴

• 4.09 x 10⁴

  1.25 x 10⁵

  5.1 x 10⁴

  7.8 x 10⁶

• 4.09 x 10⁴

  5.1 x 10⁴

  1.25 x 10⁵

  7.8 x 10⁶

• 1.25 x 10⁵

  4.09 x 10⁴

  5.1 x 10⁴

  7.8 x 10⁶

• 7.8 x 10⁶

  1.25 x 10⁵

  5.1 x 10⁴

  4.09 x 10⁴

Order the following from greatest to least:
 5 x 10³ 
 3.2 x 10⁸
 1.2 x 10⁸
 7 x 10⁵ 

•  7 x 10⁵ ,  5 x 10³ ,
   3.2 x 10⁸,  1.2 x 10⁸
•  3.2 x 10⁸, 1.2 x 10⁸,  7 x 10⁵, 5 x 10³ 
•  1.2 x 10⁸, 3.2 x 10⁸,
   5 x 10³ , 7 x 10⁵ 

Order the following from least to greatest:

6.8 x 10⁶

6 x 10⁶

6.6 x 10⁶

6.11 x 10⁶

• 6.8 x 10⁶

  6 x 10⁶

  6.6 x 10⁶

  6.11 x 10⁶

• 6.8 x 10⁶

  6 x 10⁶

  6.6 x 10⁶

  6.11 x 10⁶

• 6 x 10⁶

  6.11 x 10⁶

  6.6 x 10⁶

  6.8 x 10⁶

Which of the following numbers is the least?

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

Which of these numbers is the greatest?

• 5.46 x 10⁸

• 5.5084 x 10⁷

• 5.604 x 10⁹

• 6.504 x 10⁸

Express the following in scientific notation:

0.000457

• 457 x 10⁵

• 457 x 10^-5

• 4.57 x10⁴

• 4.57 x 10^-4

Which of these numbers is the least?

• 9 x 10⁴
• 1.2 x 10⁵
• 3.01 x 10⁹
• 1.901 x 10⁴