Erbijsommen met vlekken tot en met 30

Erbijsommen

Oefening 1
1.	15	+		=	28
2.	11	+		=	13
3.	6	+		=	10
4.	5	+		=	7
5.	10	+		=	11
6.	3	+		=	4
7.	14	+		=	25
8.	7	+		=	8
9.	13	+		=	20
10.	7	+		=	13

Oefening 2
1.	10	+		=	18
2.	15	+		=	28
3.	15	+		=	23
4.	14	+		=	19
5.	7	+		=	8
6.	13	+		=	16
7.	11	+		=	13
8.	14	+		=	18
9.	11	+		=	18
10.	13	+		=	17

Oefening 3
1.	13	+		=	25
2.	9	+		=	12
3.	9	+		=	15
4.	13	+		=	26
5.	14	+		=	22
6.	9	+		=	15
7.	15	+		=	29
8.	6	+		=	10
9.	12	+		=	15
10.	15	+		=	21

Oefening 4
1.	12	+		=	19
2.	13	+		=	17
3.	7	+		=	8
4.	10	+		=	19
5.	15	+		=	29
6.	12	+		=	19
7.	4	+		=	6
8.	11	+		=	21
9.	13	+		=	17
10.	15	+		=	17

Erbijsommen met vlekken tot en met 30
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	15	+	13	=	28
2.	11	+	2	=	13
3.	6	+	4	=	10
4.	5	+	2	=	7
5.	10	+	1	=	11
6.	3	+	1	=	4
7.	14	+	11	=	25
8.	7	+	1	=	8
9.	13	+	7	=	20
10.	7	+	6	=	13

Oefening 2
1.	10	+	8	=	18
2.	15	+	13	=	28
3.	15	+	8	=	23
4.	14	+	5	=	19
5.	7	+	1	=	8
6.	13	+	3	=	16
7.	11	+	2	=	13
8.	14	+	4	=	18
9.	11	+	7	=	18
10.	13	+	4	=	17

Oefening 3
1.	13	+	12	=	25
2.	9	+	3	=	12
3.	9	+	6	=	15
4.	13	+	13	=	26
5.	14	+	8	=	22
6.	9	+	6	=	15
7.	15	+	14	=	29
8.	6	+	4	=	10
9.	12	+	3	=	15
10.	15	+	6	=	21

Oefening 4
1.	12	+	7	=	19
2.	13	+	4	=	17
3.	7	+	1	=	8
4.	10	+	9	=	19
5.	15	+	14	=	29
6.	12	+	7	=	19
7.	4	+	2	=	6
8.	11	+	10	=	21
9.	13	+	4	=	17
10.	15	+	2	=	17