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1 of 7
σελ.40,41
2 of 7
3 of 7
4 of 7
5 of 7
4+3=
7
7-2=
5
4+5=
9
4+2=
6
8-3=
5
6 of 7
+
14+3=
17
17-3=
14
7 of 7
7
17
2
12
8
18
4
14
4
14
9
19
9
19
4
14
9
19