Question

Write 211,700,000,000 in scientific notation.

Answer 1

`2.117`×
`10^(11)`

Explanation:

Scientific notation in mathematical terms is the same as standard form.

1) Top write a number in standard form (which in this case is 211,700,000,000), you need to move the decimal point 11 spaces to get in just in front of the first significant figure.

2) Because there is no visible decimal number in the given number, you just need to add a '.0' on the end of it which will give you 211700000000.0

3) You then need to count how many times you have to move the decimal point to get it to just in front of the first significant figure

Extra tips:

If your number is a decimal with multiple zeros you would need to yet again move the decimal point until it's just after the first significant figure.

Example: 0.0078 would be written as
`7.8`×
`10^(-3)`

Hope this helps, have a great day!!

Answer 2

2.117 × 10^11

Explanation:

Hope this is correct! :))