25+68
93
12+84
58+65
123
42+36
78
27+58
85
81-65
16
56-32
24
58-9
49
75-36
39
48-36
12
9x7
63
7x3
21
8x9
72
6x5
30
6x9
54
18/3
6
54/6
9
42/7
36/9
4
36/6
12...12=24
+
98...35=63
-
16...2=32
x
21...6=2
/
35...35=70
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