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First, in
order to master this skill
you will need to change the way you
think!
Try NOT to think
about adding and subtracting.
Instead, think only about
COMBINING
!
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In these two
expressions,
imagine that you are:
COMBINING
intergers
with the same
signs.
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Expression
1
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Expression
2
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The Order of
Operations
demands that you combine the integers
IN
ORDER.
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Expression
1
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Expression
2
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1. These
expressions contain integers with
difference signs. You will have to combine
the integers,
IN
ORDER.
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Expression
1
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Expression
2
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2. The first two
integers in both expressions have
different signs (+ and -),
so get
the difference
(subtract them)
and give the result the sign of the number
with the largest absolute
value.
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Expression
1
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Expression
2
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3. In expression
1, the first two integers have the
same
sign,
so you
must
get
the sum
and give the
result the same sign (+).
In expression 2,
the first two integers have
different
signs,
so you must
get
the difference
and give it the sign of the number with
the greater absolute value
(+).
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Expression
1
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Expression
2
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4. In expression
1, the two remaining integers have
different
signs, so
you must
get
the difference and
give it the sign of the number with the
greater absolute value (+).
In expression 2,
the two remaining integers have
different
signs,
so you
must
get
the difference
and give it the sign of the number with
the greater absolute value
(+).
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Expression
1
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Expression
2
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5. Your work
should look this when you have completed
simplifying the
expressions.
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Expression
1
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Expression
2
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