Erbijsommen met vlekken tot en met 30

Erbijsommen

Oefening 1
1.	9	+		=	10
2.	12	+		=	23
3.	12	+		=	20
4.	15	+		=	17
5.	6	+		=	7
6.	11	+		=	12
7.	12	+		=	15
8.	8	+		=	15
9.	10	+		=	12
10.	13	+		=	19

Oefening 2
1.	13	+		=	21
2.	11	+		=	18
3.	3	+		=	4
4.	15	+		=	17
5.	9	+		=	11
6.	11	+		=	12
7.	13	+		=	18
8.	6	+		=	8
9.	14	+		=	28
10.	14	+		=	22

Oefening 3
1.	14	+		=	18
2.	14	+		=	23
3.	10	+		=	19
4.	2	+		=	3
5.	14	+		=	15
6.	10	+		=	19
7.	11	+		=	12
8.	14	+		=	16
9.	15	+		=	18
10.	2	+		=	3

Oefening 4
1.	8	+		=	12
2.	9	+		=	15
3.	11	+		=	20
4.	15	+		=	26
5.	7	+		=	10
6.	12	+		=	19
7.	11	+		=	15
8.	9	+		=	12
9.	11	+		=	16
10.	11	+		=	22

Erbijsommen met vlekken tot en met 30
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	9	+	1	=	10
2.	12	+	11	=	23
3.	12	+	8	=	20
4.	15	+	2	=	17
5.	6	+	1	=	7
6.	11	+	1	=	12
7.	12	+	3	=	15
8.	8	+	7	=	15
9.	10	+	2	=	12
10.	13	+	6	=	19

Oefening 2
1.	13	+	8	=	21
2.	11	+	7	=	18
3.	3	+	1	=	4
4.	15	+	2	=	17
5.	9	+	2	=	11
6.	11	+	1	=	12
7.	13	+	5	=	18
8.	6	+	2	=	8
9.	14	+	14	=	28
10.	14	+	8	=	22

Oefening 3
1.	14	+	4	=	18
2.	14	+	9	=	23
3.	10	+	9	=	19
4.	2	+	1	=	3
5.	14	+	1	=	15
6.	10	+	9	=	19
7.	11	+	1	=	12
8.	14	+	2	=	16
9.	15	+	3	=	18
10.	2	+	1	=	3

Oefening 4
1.	8	+	4	=	12
2.	9	+	6	=	15
3.	11	+	9	=	20
4.	15	+	11	=	26
5.	7	+	3	=	10
6.	12	+	7	=	19
7.	11	+	4	=	15
8.	9	+	3	=	12
9.	11	+	5	=	16
10.	11	+	11	=	22