You can put this solution on YOUR website! A number in scientific notation is of the form:
a x
where and n is an integer.
Note 1: The "a" can be equal to 1. But it cannot be 10.
Note 2: The "x" is a multiplication sign. Scientific notation often uses the old-fashioned "x" for multiplication.
To change a number into scientific notation:
Write the number in decimal form. If the number is a fraction, divide it. If the number is an integer, put a decimal at the end.
Move the decimal so that is is between the leftmost non-zero digit and the digit to its right. This new number will be the "a".
The number of places you moved the decimal point will be . If you moved the decimal to the left, n will be positive and if you moved the decimal to the right then the exponent will be negative.
Let's try this on your number:
1) Write with a decimal. Your number is already in decimal form.
2) Move the decimal. The leftmost non-zero digit is the 6. So we move the decimal between the 6 and the digit to its right, the 8:
6.8
This is the "a"
3) We moved the decimal point to the right above so the exponent, n, will be negative. And we moved it 7 places so the exponent is -7
(