Erbijsommen met vlekken tot en met 30

Erbijsommen

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

Oefening 2
1.	9	+		=	18
2.	9	+		=	10
3.	8	+		=	9
4.	15	+		=	26
5.	14	+		=	27
6.	12	+		=	20
7.	14	+		=	16
8.	11	+		=	12
9.	12	+		=	16
10.	12	+		=	16

Oefening 3
1.	15	+		=	26
2.	1	+		=	2
3.	10	+		=	15
4.	14	+		=	23
5.	14	+		=	20
6.	6	+		=	10
7.	9	+		=	17
8.	4	+		=	7
9.	6	+		=	10
10.	11	+		=	21

Oefening 4
1.	4	+		=	7
2.	11	+		=	14
3.	9	+		=	10
4.	15	+		=	22
5.	9	+		=	14
6.	14	+		=	24
7.	13	+		=	17
8.	15	+		=	28
9.	6	+		=	9
10.	14	+		=	25

Erbijsommen met vlekken tot en met 30
| ANTWOORDEN

Erbijsommen

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

Oefening 2
1.	9	+	9	=	18
2.	9	+	1	=	10
3.	8	+	1	=	9
4.	15	+	11	=	26
5.	14	+	13	=	27
6.	12	+	8	=	20
7.	14	+	2	=	16
8.	11	+	1	=	12
9.	12	+	4	=	16
10.	12	+	4	=	16

Oefening 3
1.	15	+	11	=	26
2.	1	+	1	=	2
3.	10	+	5	=	15
4.	14	+	9	=	23
5.	14	+	6	=	20
6.	6	+	4	=	10
7.	9	+	8	=	17
8.	4	+	3	=	7
9.	6	+	4	=	10
10.	11	+	10	=	21

Oefening 4
1.	4	+	3	=	7
2.	11	+	3	=	14
3.	9	+	1	=	10
4.	15	+	7	=	22
5.	9	+	5	=	14
6.	14	+	10	=	24
7.	13	+	4	=	17
8.	15	+	13	=	28
9.	6	+	3	=	9
10.	14	+	11	=	25