22 Easy Algebra Step-by-Step
c. 60 − 35
Step 1. Keep 60.
60
Step 2. Add the opposite of 35.
=+ 60 − 35
d. −− 35 ()− 60
Step 1. Keep − 35.
− 35
Step 2. Add the opposite of − 60.
=− 35 + 60
e. 060
Step 1. Keep 0.
0
Step 2. Add the opposite of 60.
= 06 +− 0
f. −− 60 0
Step 1. Keep − 60.
− 60
Step 2. Add the opposite of 0.
=− 60 + 0
Problem Find the difference.
a. −− 35 60
b. 35 − 60
c. 60 − 35
d. −−^35 ()−^60
e.^0 ()^60
f. −− 60 0
A helpful mnemonic to remember how to subtract signed
numbers is “Keep, change, change.” You keep the fi rst
number, you change minus to plus, and you change the
second number to its opposite.
Remember 0 is its own opposite.