Understanding and writing numbers in scientific notation

Negative exponents for powers of ten are meant to represent numbers between ____________

• 1 and -1

• 1 and 2

• -1 and -2

• 0 and 1

Write the number 0.00302 in standard form correct to 1 significant figure.

• 3 x 10^-3

• 3 x 10^-2

• 4 x 10^-3

• 4 x 10^-2

Jessica's math teacher placed the following numbers on the board and asked the class to put them in order from least to greatest. $3.4\ \times10^{-2},\ 2.6\times10^3,\ 7.5\times10^{-1},\ 9.8\times10^0$  

•  $2.6\times10^3,\ 3.4\times10^{-2},\ 7.5\times10^{-1},\ 9.8\times10^0$  

•  $3.4\times10^{-2},\ 7.5\times10^{-1},\ 9.8\times10^0,\ 2.6\times10^3$  

•  $9.8\times10^0,\ 7.5\times10^{-1},\ 3.4\times10^{-2},\ 2.6\times10^3$  

•  $2.6\times10^3,\ 9.8\times10^0,\ 7.5^{-1},\ 3.4\times10^{-2}$  
  

Which of the following numbers is written in scientific notation?

• 20.35 x 10⁴

• .2035 x 10⁴

• 2035 ⁴

• 2.035 x10⁴

Which number has the greatest magnitude?

• 5.25 x 10²
• 2.55 x 10⁴
• 5.55 x 10⁵
• 5 x 10³

How would you write 8,342,000,000 in scientific notation?

• $8.342\ \times10^8$

• $8.342\ \times\ 10^9$

• $8.3\ \times10^9$

• $8.342\times10^{10}$

A number written in scientific notation must be greater than or equal to 1 and less than 10.

• True

• False

Write in scientific notation. 7

• 7 x 10⁰

• 7 x 10¹

• 7 x 10²

• 7 x 10³

a finite decimal is the representation of that decimal as the product of a decimal 's', and a power of 10, where 's' satisfies the property that is absolute value is at least but less than ten, or in symbolic notation

• order of magnitude

• exponent

• scientific notation

• base

Is this number written in Scientific Notation?  $12.5\ x\ 10^4$  

• No

• Yes