Question

There are approximately 45 hundred species of mammals on Earth and 2.8 x 10 to the 4 species of fish. What is the difference in the number of species?

This is SCIENTIFIC NOTATION

Answer 1

23,500

Explanation:

45 hundred = 45 × 100 = 4,500

2.8 × 10^4 = 28,000

28,000 - 4,500 = 23,500

Answer 2

23500

Explanation:

We are given that

Number of species of mammals on earth=approximately 45 hundred=4500

Number of species of fish=
`2.8* 10^4=2.8* 10000=28000`

We have to find the difference between the number of species of mammals and fish.

In order to find the difference in the number of species we will subtract number of species mammals from the number of species of fish.

Difference=28000-4500=23500

Hence, the difference between the number of species of mammals and fish=23500