How do you write 87000 in scientific notation?

2 Answers
Mar 25, 2018

8.7*10^4

Explanation:

When using scientific notation we want to keep the all the non-zero numbers that come before the string of zeroes, which are 8 and 7.

The decimal goes between the 8 and 7:
8.7

To get back to the original number we have to multiply 8.7 by 1000
or in other terms:

8.7*10^4

Mar 25, 2018

8.7*10^4

Explanation:

We have the number, 87000.

In scientific notation, we would write the number with its first digit followed by a decimal point, and then the second digit of the number, and then multiplied by 10 to a power that places the decimal point where it belongs in the number.

And so, to write the number 87000 in scientific notation, we first take the first digit of the number 8 and put a decimal point after it.

The number is 8. right now.

Now, we place the second digit in the number 87000, that is 7, and we get,

8.7

Final step is to multiply the number by 10 to a power that puts the decimal place where it makes the desired number.

We got:

8.7*10^1=87

8.7*10^2=870

8.7*10^3=8700

8.7*10^4=87000

And so, the scientific notation of this number would be 8.7*10^4.