A company used about #7.4 times 10^5# sheets of paper in a month. Of the paper used during the month, the accounting department used about #8.9 times 10^3# of the sheets. About how many sheets of paper were used by other departments during the month?

1 Answer
Tony B
Dec 31, 2016

#7.311xx10^5#

Explanation:

#color(white)(..)7.4xx10^5#
#color(white)(.)74.0xx10^4#
#740.0xx10^3 larr" we can now do the subtraction as same " 10^n#

#740.0xx10^3#
#ul(color(white)(74)8.9xx10^3) larr" subtract"#
#731.1xx10^3#
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#731.100xx10^3#
#color(white)(3)73.110xx10^4#
#color(white)(77)7.311xx10^5#

#" "color(green)( bar(ul(|color(white)(2/2)7.311xx10^5color(white)(2)|)))#

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