Erbijsommen met vlekken tot en met 30

Erbijsommen

Oefening 1
1.	13	+		=	15
2.	15	+		=	25
3.	2	+		=	4
4.	8	+		=	10
5.	13	+		=	15
6.	9	+		=	12
7.	15	+		=	19
8.	8	+		=	12
9.	13	+		=	22
10.	13	+		=	20

Oefening 2
1.	11	+		=	16
2.	6	+		=	8
3.	14	+		=	20
4.	10	+		=	11
5.	11	+		=	22
6.	10	+		=	13
7.	8	+		=	11
8.	13	+		=	20
9.	13	+		=	21
10.	10	+		=	12

Oefening 3
1.	8	+		=	10
2.	13	+		=	24
3.	10	+		=	20
4.	14	+		=	18
5.	13	+		=	23
6.	14	+		=	23
7.	14	+		=	22
8.	6	+		=	7
9.	6	+		=	10
10.	6	+		=	8

Oefening 4
1.	14	+		=	24
2.	14	+		=	25
3.	12	+		=	15
4.	12	+		=	22
5.	6	+		=	12
6.	15	+		=	21
7.	12	+		=	22
8.	15	+		=	20
9.	12	+		=	17
10.	8	+		=	13

Erbijsommen met vlekken tot en met 30
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	13	+	2	=	15
2.	15	+	10	=	25
3.	2	+	2	=	4
4.	8	+	2	=	10
5.	13	+	2	=	15
6.	9	+	3	=	12
7.	15	+	4	=	19
8.	8	+	4	=	12
9.	13	+	9	=	22
10.	13	+	7	=	20

Oefening 2
1.	11	+	5	=	16
2.	6	+	2	=	8
3.	14	+	6	=	20
4.	10	+	1	=	11
5.	11	+	11	=	22
6.	10	+	3	=	13
7.	8	+	3	=	11
8.	13	+	7	=	20
9.	13	+	8	=	21
10.	10	+	2	=	12

Oefening 3
1.	8	+	2	=	10
2.	13	+	11	=	24
3.	10	+	10	=	20
4.	14	+	4	=	18
5.	13	+	10	=	23
6.	14	+	9	=	23
7.	14	+	8	=	22
8.	6	+	1	=	7
9.	6	+	4	=	10
10.	6	+	2	=	8

Oefening 4
1.	14	+	10	=	24
2.	14	+	11	=	25
3.	12	+	3	=	15
4.	12	+	10	=	22
5.	6	+	6	=	12
6.	15	+	6	=	21
7.	12	+	10	=	22
8.	15	+	5	=	20
9.	12	+	5	=	17
10.	8	+	5	=	13