What is #2/ 5# of 8500?

1 Answer
Jan 30, 2017

3400

Explanation:

As there are a whole 'pile' of zeros at the end of 8500 this is a more straight forward way of solving this question.

#2/5# is the same as #4/10# so we have:

#2/5xx8500# is the same as #4/10xx8500#

#=4xx8500/10#

#=4xx850#

But 4 is #2xx2#

#=2xx2xx850#

#=2xx1700#

#=3400#
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Should look like this once you get a bit of practice in.

write as #4/10xx8500 = 4xx850#

#=2xx1700#

#=3400#