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Mean
Mathematics, Grade 4
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Study Guide Mean Mathematics, Grade 4
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FINDING
THE
MEAN
(AVERAGE)
A
mean
of
a
group
of
numbers
is
the
average
of
those
numbers.
Here
is
an
example.
David
has
taken
three
Math
tests
so
far
this
year.
He
received
a
92%
on
his
first
test,
a
90%
on
his
second
test,
and
an
85%
on
his
third
test.
Let’s
find
the
average
or
mean
of
David’s
3
test
scores.
Here
is
what
you
need
to
do.
First,
add
the
3
tests
scores
together.
92
90
+
85
267
Next,
count
the
number
of
tests
scores
there
are.
There
are
3
test
scores.
Now,
divide
the
total
267
by
3.
89
3
267
-24
27
-27
0
Now
you
have
a
solution
The
mean
of
David’s
test
scores
=
89%.
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Permission
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for
the
purchaser
to
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copies
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educational
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You
Try
Jamie
also
took
three
Math
tests
so
far
this
year.
She
received
a
91%
on
her
first
test,
a
93%
on
her
second
test,
and
a
95%
on
her
third
test.
What
is
the
mean
of
Jamie’s
three
test
scores?
a]
90%
b]
91%
c]
93%
d]
89%
If
you
answered
c]
93%,
you’re
right!
(You
should
have
added
the
THREE
test
scores
and
then
divided
that
sum
by
THREE.)
© Copyright NewPath Learning. All Rights Reserved.
Permission
is
granted
for
the
purchaser
to
print
copies
for
non-commercial
educational
purposes
only.
Visit
us
at
www.NewPathLearning.com.
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