4
x
____________________
=
4
4
x
2
=
____________________
____________________
x
3
=
12
4
x
4
=
____________________
4
x
____________________
=
20
4
x
6
=
____________________
4
x
____________________
=
28
4
x
8
=
____________________
4
x
____________________
=
36
4
x
10
=
____________________
IV
x
____________________
=
IV
IV
x
II
=
____________________
____________________
x
III
=
XII
IV
x
IV
=
____________________
IV
x
____________________
=
XX
IV
x
VI
=
____________________
IV
x
____________________
=
XXVIII
IV
x
VIII
=
____________________
IV
x
____________________
=
XXXVI
IV
x
X
=
____________________
