10
+
10
=
____________________
40
-
10
=
____________________
20
+
5
=
____________________
-
____________________
60
-
20
=
____________________
50
+
10
=
____________________
100
-
20
=
____________________
80
+
10
=
____________________
40
+
30
=
____________________
50
+
50
=
____________________
____________________
34
=
____________________
-
____________________
43
=
____________________
-
____________________
52
=
____________________
-
____________________
61
=
____________________
-
____________________
76
=
____________________
-
____________________
87
=
____________________
-
____________________
98
=
____________________
-
____________________
