Erbijsommen met vlekken tot en met 100

Erbijsommen

Oefening 1
1.	47	+		=	78
2.	32	+		=	51
3.	31	+		=	49
4.	33	+		=	51
5.	42	+		=	71
6.	45	+		=	56
7.	48	+		=	83
8.	13	+		=	24
9.	47	+		=	63
10.	35	+		=	46

Oefening 2
1.	50	+		=	81
2.	45	+		=	83
3.	30	+		=	44
4.	40	+		=	50
5.	47	+		=	86
6.	49	+		=	64
7.	37	+		=	58
8.	49	+		=	86
9.	43	+		=	64
10.	46	+		=	79

Oefening 3
1.	41	+		=	54
2.	47	+		=	78
3.	45	+		=	57
4.	49	+		=	65
5.	43	+		=	53
6.	46	+		=	82
7.	34	+		=	44
8.	29	+		=	52
9.	37	+		=	58
10.	44	+		=	73

Oefening 4
1.	32	+		=	52
2.	23	+		=	46
3.	38	+		=	63
4.	48	+		=	60
5.	36	+		=	63
6.	46	+		=	58
7.	48	+		=	77
8.	27	+		=	48
9.	50	+		=	90
10.	36	+		=	60

Erbijsommen met vlekken tot en met 100
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	47	+	31	=	78
2.	32	+	19	=	51
3.	31	+	18	=	49
4.	33	+	18	=	51
5.	42	+	29	=	71
6.	45	+	11	=	56
7.	48	+	35	=	83
8.	13	+	11	=	24
9.	47	+	16	=	63
10.	35	+	11	=	46

Oefening 2
1.	50	+	31	=	81
2.	45	+	38	=	83
3.	30	+	14	=	44
4.	40	+	10	=	50
5.	47	+	39	=	86
6.	49	+	15	=	64
7.	37	+	21	=	58
8.	49	+	37	=	86
9.	43	+	21	=	64
10.	46	+	33	=	79

Oefening 3
1.	41	+	13	=	54
2.	47	+	31	=	78
3.	45	+	12	=	57
4.	49	+	16	=	65
5.	43	+	10	=	53
6.	46	+	36	=	82
7.	34	+	10	=	44
8.	29	+	23	=	52
9.	37	+	21	=	58
10.	44	+	29	=	73

Oefening 4
1.	32	+	20	=	52
2.	23	+	23	=	46
3.	38	+	25	=	63
4.	48	+	12	=	60
5.	36	+	27	=	63
6.	46	+	12	=	58
7.	48	+	29	=	77
8.	27	+	21	=	48
9.	50	+	40	=	90
10.	36	+	24	=	60