42
-
20
=
____________________
55
-
50
=
____________________
61
-
50
=
____________________
37
-
30
=
____________________
74
-
30
=
____________________
77
-
40
=
____________________
50
-
25
=
____________________
82
-
30
=
____________________
58
-
30
=
____________________
41
-
30
=
____________________
69
-
40
=
____________________
83
-
60
=
____________________
63
-
20
=
____________________
91
-
20
=
____________________
78
-
50
=
____________________
