How do you write 0.000189 in scientific notation?

1 Answer
Jun 21, 2015

Answer:

#1.89xx10^-4#

Explanation:

Take the decimal point and move it to the right until you pass the first non-zero digit (in this case number #1#) stop there and get rid of the zeros.
Count the movements of the point and use this value as NEGATIVE power of #10# that you'll use as a multiplicator.
You get:
#1.89# and 4 movements of the point.
so you get: #1.89xx10^-4#

Remember if you move the point to the right the exponent of #10# will be negative (as in this case). If you move it to the left it will be positive.
Ex. #1,890,000=1.89xx10^6#