Erbijsommen met vlekken tot en met 30

Erbijsommen

Oefening 1
1.	12	+		=	23
2.	13	+		=	21
3.	9	+		=	11
4.	15	+		=	16
5.	8	+		=	9
6.	15	+		=	23
7.	2	+		=	3
8.	12	+		=	17
9.	15	+		=	18
10.	3	+		=	5

Oefening 2
1.	9	+		=	10
2.	11	+		=	16
3.	4	+		=	5
4.	15	+		=	28
5.	9	+		=	16
6.	13	+		=	14
7.	3	+		=	4
8.	12	+		=	20
9.	15	+		=	27
10.	14	+		=	18

Oefening 3
1.	7	+		=	13
2.	13	+		=	19
3.	14	+		=	23
4.	10	+		=	13
5.	9	+		=	15
6.	12	+		=	22
7.	7	+		=	12
8.	14	+		=	27
9.	1	+		=	2
10.	12	+		=	24

Oefening 4
1.	7	+		=	11
2.	14	+		=	22
3.	14	+		=	23
4.	10	+		=	13
5.	13	+		=	21
6.	8	+		=	12
7.	12	+		=	18
8.	13	+		=	25
9.	13	+		=	16
10.	10	+		=	17

Erbijsommen met vlekken tot en met 30
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	12	+	11	=	23
2.	13	+	8	=	21
3.	9	+	2	=	11
4.	15	+	1	=	16
5.	8	+	1	=	9
6.	15	+	8	=	23
7.	2	+	1	=	3
8.	12	+	5	=	17
9.	15	+	3	=	18
10.	3	+	2	=	5

Oefening 2
1.	9	+	1	=	10
2.	11	+	5	=	16
3.	4	+	1	=	5
4.	15	+	13	=	28
5.	9	+	7	=	16
6.	13	+	1	=	14
7.	3	+	1	=	4
8.	12	+	8	=	20
9.	15	+	12	=	27
10.	14	+	4	=	18

Oefening 3
1.	7	+	6	=	13
2.	13	+	6	=	19
3.	14	+	9	=	23
4.	10	+	3	=	13
5.	9	+	6	=	15
6.	12	+	10	=	22
7.	7	+	5	=	12
8.	14	+	13	=	27
9.	1	+	1	=	2
10.	12	+	12	=	24

Oefening 4
1.	7	+	4	=	11
2.	14	+	8	=	22
3.	14	+	9	=	23
4.	10	+	3	=	13
5.	13	+	8	=	21
6.	8	+	4	=	12
7.	12	+	6	=	18
8.	13	+	12	=	25
9.	13	+	3	=	16
10.	10	+	7	=	17