10
+
____________________
=
20
____________________
+
10
=
30
30
+
10
=
____________________
40
+
10
=
50
50
+
____________________
=
60
60
+
10
=
____________________
____________________
+
10
=
80
80
+
10
=
____________________
____________________
+
10
=
100
10
____________________
10
=
100
20
x
____________________
=
100
50
____________________
2
=
100
100
x
____________________
=
10
0
