Erbijsommen met vlekken tot en met 20

Erbijsommen

Oefening 1
1.	10	+		=	18
2.	9	+		=	13
3.	8	+		=	12
4.	9	+		=	12
5.	4	+		=	6
6.	1	+		=	2
7.	10	+		=	20
8.	7	+		=	9
9.	9	+		=	15
10.	4	+		=	8

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

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

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

Erbijsommen met vlekken tot en met 20
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	10	+	8	=	18
2.	9	+	4	=	13
3.	8	+	4	=	12
4.	9	+	3	=	12
5.	4	+	2	=	6
6.	1	+	1	=	2
7.	10	+	10	=	20
8.	7	+	2	=	9
9.	9	+	6	=	15
10.	4	+	4	=	8

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

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

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