3
x
1
=
____________________
3
x
____________________
=
6
3
x
3
=
____________________
3
x
____________________
=
12
3
x
5
=
____________________
3
x
____________________
=
18
3
x
7
=
____________________
3
x
____________________
=
24
3
x
9
=
____________________
3
x
____________________
=
30
III
x
____________________
=
III
III
x
II
=
____________________
____________________
x
III
=
IX
III
x
IV
=
____________________
III
x
____________________
=
XV
____________________
x
VI
=
XVIII
III
x
VII
=
____________________
III
x
____________________
=
XXIV
III
x
IX
=
____________________
III
x
____________________
=
XX
X
