The weight of an ant averages about 3×10−6 kg. There are about 1×1016 ants in the world. What is the approximate weight in kilograms of all the ants in the world? Write the answer in scientific notation.
___kg
3×10^(-6) kg x 1×10^16 = 3×10^10 kg
Approximately 3×10^10 kg of ants.