How do you simplify and write #2.897times10^3 + 2.09times10^4# in standard notation?

1 Answer
Jul 14, 2017

Answer:

#2.3797xx10^4#

Explanation:

To add numbers in standard notation the powers of #10# must be the same .

So one of the numbers is taken out of standard notation, then the numbers added. Then return to standard notation

#2.897xx10^3+2.09xx10^4#

#=2.897xx10^3+2.09xx10^3xx10#

#=2.897xx10^3+20.9xx10^3#

#(2.897+20.9)xx10^3#

#23.797xx10^3#

#2.3797xx10^4#