Erbijsommen met vlekken tot en met 40

Erbijsommen

Oefening 1
1.	17	+		=	21
2.	12	+		=	20
3.	20	+		=	28
4.	18	+		=	21
5.	11	+		=	21
6.	20	+		=	25
7.	14	+		=	15
8.	6	+		=	9
9.	9	+		=	17
10.	11	+		=	21

Oefening 2
1.	15	+		=	18
2.	10	+		=	14
3.	5	+		=	10
4.	16	+		=	21
5.	5	+		=	10
6.	13	+		=	20
7.	8	+		=	10
8.	13	+		=	18
9.	14	+		=	17
10.	19	+		=	25

Oefening 3
1.	20	+		=	22
2.	15	+		=	22
3.	3	+		=	4
4.	17	+		=	33
5.	20	+		=	29
6.	13	+		=	22
7.	11	+		=	15
8.	13	+		=	17
9.	17	+		=	28
10.	14	+		=	22

Oefening 4
1.	17	+		=	27
2.	16	+		=	27
3.	10	+		=	13
4.	18	+		=	24
5.	10	+		=	19
6.	17	+		=	31
7.	16	+		=	22
8.	9	+		=	15
9.	6	+		=	7
10.	13	+		=	19

Erbijsommen met vlekken tot en met 40
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	17	+	4	=	21
2.	12	+	8	=	20
3.	20	+	8	=	28
4.	18	+	3	=	21
5.	11	+	10	=	21
6.	20	+	5	=	25
7.	14	+	1	=	15
8.	6	+	3	=	9
9.	9	+	8	=	17
10.	11	+	10	=	21

Oefening 2
1.	15	+	3	=	18
2.	10	+	4	=	14
3.	5	+	5	=	10
4.	16	+	5	=	21
5.	5	+	5	=	10
6.	13	+	7	=	20
7.	8	+	2	=	10
8.	13	+	5	=	18
9.	14	+	3	=	17
10.	19	+	6	=	25

Oefening 3
1.	20	+	2	=	22
2.	15	+	7	=	22
3.	3	+	1	=	4
4.	17	+	16	=	33
5.	20	+	9	=	29
6.	13	+	9	=	22
7.	11	+	4	=	15
8.	13	+	4	=	17
9.	17	+	11	=	28
10.	14	+	8	=	22

Oefening 4
1.	17	+	10	=	27
2.	16	+	11	=	27
3.	10	+	3	=	13
4.	18	+	6	=	24
5.	10	+	9	=	19
6.	17	+	14	=	31
7.	16	+	6	=	22
8.	9	+	6	=	15
9.	6	+	1	=	7
10.	13	+	6	=	19