Összeadás 1.
×
vissza
3. - 4. gyakorló feladat
megoldás
3)
5
–
1
=
4)
4
–
5
=
3
–
3
=
–
6
+
7
=
0
–
1
=
–
4
+
9
=
–
8
+
9
=
–
1
–
3
=
–
3
+
8
=
–
2
–
0
=