Question

The moon is approximately 221,000 miles from the Earth. Drag the tiles to represent 221,000 in scientific notation.

Answer 1

The scientific notation is $2.21\times 10^5$.

Solution:

Let us first define the scientific notation.

Scientific notation is used to write large numbers in a small manner.

Rule to write the Scientific notation:

• Write one number before the decimal point.
• Count the zeroes and number after the decimal point.

For example:

500 can be written as 5 × 10².

6500 can be written as 6.5 × 10³.

Given data:

Distance from Earth to Moon = 221,000 miles

To write this in a scientific notation.

221,000 = $2.21\times 10^5$

Hence the scientific notation is $2.21\times 10^5$.