What operation does
this problem have?
Are the signs
the same?
Are the signs
the same?
No
Yes
Subtract and
keep the sign of
the larger.
Add like normal and
keep the sign
Yes
(keep-change-flip) Keep
the first term, change the
operation to addition and
flip the sign of the second
term. Now use the rules
for adding integers.
Divide like normal
answer is positive.
Divide like normal
answer is negative.
Are the signs
the same?
Yes
Multiply like normal the
answer is positive.
No
No
Multiply like normal the
answer is negative.