Összeadás 2.
×
vissza
8. feladat megoldása
(–
7)
–
(+
5)
=
–
7
–
5
=
–
1
2
(+
3)
–
(–
8)
=
+
3
+
8
=
+
1
1
(–
3)
+
(+
6)
=
–
3
+
6
=
+
3
(+
3)
+
(–
1)
=
+
3
–
1
=
+
2
(–
4)
–
(+
6)
=
–
4
–
6
=
–
1
0
