Erbijsommen met vlekken tot en met 30

Erbijsommen

Oefening 1
1.	15	+		=	26
2.	10	+		=	16
3.	8	+		=	10
4.	9	+		=	15
5.	6	+		=	9
6.	7	+		=	9
7.	12	+		=	19
8.	11	+		=	13
9.	6	+		=	10
10.	15	+		=	26

Oefening 2
1.	7	+		=	8
2.	10	+		=	14
3.	15	+		=	19
4.	10	+		=	12
5.	2	+		=	3
6.	14	+		=	18
7.	12	+		=	21
8.	15	+		=	17
9.	13	+		=	26
10.	14	+		=	18

Oefening 3
1.	12	+		=	13
2.	11	+		=	19
3.	13	+		=	25
4.	12	+		=	21
5.	11	+		=	13
6.	7	+		=	10
7.	2	+		=	3
8.	6	+		=	10
9.	15	+		=	26
10.	6	+		=	9

Oefening 4
1.	4	+		=	8
2.	8	+		=	9
3.	7	+		=	12
4.	15	+		=	23
5.	14	+		=	22
6.	15	+		=	20
7.	5	+		=	6
8.	8	+		=	13
9.	9	+		=	15
10.	12	+		=	23

Erbijsommen met vlekken tot en met 30
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	15	+	11	=	26
2.	10	+	6	=	16
3.	8	+	2	=	10
4.	9	+	6	=	15
5.	6	+	3	=	9
6.	7	+	2	=	9
7.	12	+	7	=	19
8.	11	+	2	=	13
9.	6	+	4	=	10
10.	15	+	11	=	26

Oefening 2
1.	7	+	1	=	8
2.	10	+	4	=	14
3.	15	+	4	=	19
4.	10	+	2	=	12
5.	2	+	1	=	3
6.	14	+	4	=	18
7.	12	+	9	=	21
8.	15	+	2	=	17
9.	13	+	13	=	26
10.	14	+	4	=	18

Oefening 3
1.	12	+	1	=	13
2.	11	+	8	=	19
3.	13	+	12	=	25
4.	12	+	9	=	21
5.	11	+	2	=	13
6.	7	+	3	=	10
7.	2	+	1	=	3
8.	6	+	4	=	10
9.	15	+	11	=	26
10.	6	+	3	=	9

Oefening 4
1.	4	+	4	=	8
2.	8	+	1	=	9
3.	7	+	5	=	12
4.	15	+	8	=	23
5.	14	+	8	=	22
6.	15	+	5	=	20
7.	5	+	1	=	6
8.	8	+	5	=	13
9.	9	+	6	=	15
10.	12	+	11	=	23