Összeadás 3.                                                                       ×vissza

5. feladatmegoldása

–	6	0	+	3	0	+	2	0	–	1	0	=	5	0	–	7	0	=	–	9	0
	8	0	–	5	0	+	2	0	–	4	0	=	1	0	0	–	9	0	=	1	0
	7	0	+	1	0	–	5	0	–	7	0	=	1	0	–	5	0	=	–	4	0
–	5	0	+	4	0	–	3	0	+	2	0	=	6	0	–	8	0	=	–	3	0
	2	0	+	7	0	–	5	0	+	6	0	=	=	6	0