How do you evaluate #15.7+ 2.34+ 5.06#?

1 Answer
EZ as pi
Mar 4, 2017

#23.1#

Explanation:

When you are adding and subtracting numbers with different place holders, they have to be aligned under each other.

Write them with the decimal points aligned:

Add in the normal way, starting from the right.

#" "15.70" "larr# write an extra 0.
#" "+2.34#
#" "+ul5.06#
#" "23.10#

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