A
d
d
a
n
d
f
i
n
d
t
h
e
d
e
g
r
e
e
o
f
t
h
e
f
o
l
l
o
w
i
n
g
e
x
p
r
e
s
s
i
o
n
:
(
k
2
-
25
k
+
46
)
a
n
d
(
23
-
2
k
2
+
21
k
)
Matching exercise
Match the items on the right to the items on the left.
Check
OK
STEP1
STEP2
STEP3
STEP4
STEP5
