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Rounding
Mathematics, Grade 5
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Study Guide Rounding Mathematics, Grade 5
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ROUNDING
What
is
Rounding?
•
Rounding
makes
numbers
that
are
easier
to
work
with
in
your
head.
•
Rounded
numbers
are
only
approximate.
•
An
exact
answer
generally
cannot
be
obtained
using
rounded
numbers.
•
Use
rounding
to
get
an
answer
that
is
close
but
that
does
not
have
to
be
exact.
Rounding
whole
numbers
1.
Determine
what
your
rounding
digit
is
and
look
to
the
right
side
of
it.
If
the
digit
is
0,1,2,3
or
4
do
not
change
the
rounding
digit.
All
digits
that
are
on
the
right
hand
side
of
the
requested
rounding
digit
will
become
0.
2.
Determine
what
your
rounding
digit
is
and
look
to
the
right
of
it.
If
the
digit
is
5,6,7,
8
or
9,
your
rounding
digit
rounds
up
by
one
number.
All
digits
that
are
on
the
right
hand
side
of
the
requested
rounding
digit
will
become
0.
Rounding
Decimals
When
rounding
numbers
involving
decimals,
there
are
2
rules
to
remember:
1.
Determine
what
your
rounding
digit
is
and
look
to
the
right
side
of
it.
If
that
digit
is
4,3,
2
or
1,
simply
drop
all
digits
to
the
right
of
it.
2.
Determine
what
your
rounding
digit
is
and
look
to
the
right
side
of
it.
If
that
digit
is
5,
6,
7,
8
or
9
add
one
to
the
rounding
digit
and
drop
all
digits
to
the
right
of
it.
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Permission
is
granted
for
the
purchaser
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print
copies
for
non-commercial
educational
purposes
only.
Visit
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Example:
765.3682
becomes:
1000
when
rounded
to
the
nearest
thousand
(1000)
800
when
rounded
to
the
nearest
hundred
(100)
770
when
rounded
to
the
nearest
ten
(10)
765
when
rounded
to
the
nearest
one
(1)
765.4
when
rounded
to
the
nearest
tenth
(10th)
765.37
when
rounded
to
the
nearest
hundredth
(100th.)
765.368
when
rounded
to
the
nearest
thousandth
(1000th)
Try
this!
Round
3,489
to
the
nearest
Hundred
=
_______________
Thousand
=
_______________
Ten
=
_______________
Round
125.78
to
the
nearest
Tenths
=
_____________
One
=
_____________
Hundredths
=
_____________
© 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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