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

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Answer 1 · 2017-07-14T09:02:30

#2.3797xx10^4#

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#