F
i
n
d
t
h
e
v
a
l
u
e
o
f
a
a
n
d
b
i
f
7
-
2
7
+
2
=
a
7
+
b
Match the items on the right to the items on the left.
Check
OK
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6