Moltiplicazione.
1
2
2
2
3+
·
+
·
+1
1
2
2
3=
=
=
=
=......
......
......
......
......
2
4
2
5
2·
+
·
+
·3
4
4
5
5=
=
=
=
=......
......
......
......
......
6
2
7
2
8+
·
+
·
+6
6
7
7
8=
=
=
=
=......
......
......
......
......
2
9
2
10
2·
+
·
+
·8
9
9
10
10=
=
=
=
=......
......
......
......
......
2 x 5 is ..........
2 x 7 is ..........
2 x 8 is ..........
2 x 2 is ..........
2 x3 is ..........2 x 1 is ..........
2 x 9 is ..........
2 x 4 is ..........
2 x 6 is ..........
2 x 10 is ..........
2
6
4
10
8:
:
:
:
:2
1
2
2
2=
=
=
=
=......
......
......
......
......
2
2
2
2
2·
·
·
·
·......
......
......
......
......=
=
=
=
=2
6
4
10
8
14
12
18
20
16:
:
:
:
:2
2
2
2
2=
=
=
=
=......
......
......
......
......
2
2
2
2
2·
·
·
·
·......
......
......
......
......=
=
=
=
=14
12
18
20
16