80
-
30
=
cincuenta
67
-
28
=
____________________
y
____________________
66
-
30
=
____________________
y
____________________
61
-
45
=
____________________
41
-
27
=
____________________
66
-
34
=
____________________
y
dos
93
-
31
=
____________________
y
____________________
59
-
15
=
____________________
y
____________________
69
-
38
=
____________________
y
____________________
59
-
13
=
____________________
y
seis
21
-
20
=
____________________
37
-
29
=
____________________
83
-
27
=
____________________
y
____________________
77
-
48
=
____________________
