• 7.25 x 10¹³

• 7.25 x 10¹²

• 5.0 x 10¹²

• 5.0 x 10¹³

Perform the indicated operations. Leave answers in scientific notation.

 $\left(3.52\times10^8\right)+\left(6.99\times10^8\right)$  

Solve: (9.21 x 10⁹) - (6 x 10⁹)

• 3.21 x 10¹⁸

• 1.521 x 10¹⁰

• 15.21 x 10⁹

• 3.21 x 10⁹

Evaluate each expression. Give al final answers in scientific notation.

Mathematical Equivalence

OFF

Give the sum of (8.7 x 10^-7) + (3.23 x 10^-5)

• 1.193 x 10^-12

• 3.317 x 10^-5

• 3.317 x 10^-12

• 5.53 x 10^-2

Write in scientific notation:

(7.3 x 10⁵) + (3.7 x 10⁵) =

*THE FIRST FACTOR HAS TO BE BETWEEN 1 - 9.9

• 11.0 x 10⁵

• 1.1 x 10¹⁰

• 1.10 x 10¹¹

• 1.1 x 10 ⁶

(8 x 10⁴) + (4 x 10⁴)

• 12 x 10⁴
• 1.2 x 10⁵
• 1.2 x 10⁹
• 1.2 x 10⁸

(7.7 x 10²) + (1.1 x 10²)=

• 8.8 x 10⁴

• 6.6 x 10⁴

• 8.8 x 10²

• 6.6 x 10²

 $\left(3\times10^{-9}\right)+\left(5\times10^{-7}\right)=$  

•  $5.03\times10^{-7}$  

•  $5.03\times10^{-9}$  

•  $5.03\times10^{-6}$  

•  $530\times10^7$