Erbijsommen met vlekken tot en met 50

Erbijsommen

Oefening 1
1.	17	+		=	31
2.	14	+		=	20
3.	25	+		=	40
4.	21	+		=	31
5.	21	+		=	34
6.	14	+		=	23
7.	25	+		=	36
8.	24	+		=	36
9.	23	+		=	36
10.	20	+		=	35

Oefening 2
1.	19	+		=	36
2.	22	+		=	39
3.	12	+		=	23
4.	22	+		=	35
5.	8	+		=	14
6.	16	+		=	29
7.	11	+		=	21
8.	14	+		=	27
9.	22	+		=	31
10.	20	+		=	32

Oefening 3
1.	21	+		=	36
2.	19	+		=	36
3.	14	+		=	23
4.	25	+		=	32
5.	14	+		=	23
6.	12	+		=	22
7.	20	+		=	32
8.	25	+		=	50
9.	25	+		=	40
10.	22	+		=	37

Oefening 4
1.	14	+		=	23
2.	12	+		=	21
3.	7	+		=	12
4.	18	+		=	33
5.	24	+		=	39
6.	19	+		=	27
7.	18	+		=	29
8.	16	+		=	28
9.	19	+		=	31
10.	21	+		=	29

Erbijsommen met vlekken tot en met 50
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	17	+	14	=	31
2.	14	+	6	=	20
3.	25	+	15	=	40
4.	21	+	10	=	31
5.	21	+	13	=	34
6.	14	+	9	=	23
7.	25	+	11	=	36
8.	24	+	12	=	36
9.	23	+	13	=	36
10.	20	+	15	=	35

Oefening 2
1.	19	+	17	=	36
2.	22	+	17	=	39
3.	12	+	11	=	23
4.	22	+	13	=	35
5.	8	+	6	=	14
6.	16	+	13	=	29
7.	11	+	10	=	21
8.	14	+	13	=	27
9.	22	+	9	=	31
10.	20	+	12	=	32

Oefening 3
1.	21	+	15	=	36
2.	19	+	17	=	36
3.	14	+	9	=	23
4.	25	+	7	=	32
5.	14	+	9	=	23
6.	12	+	10	=	22
7.	20	+	12	=	32
8.	25	+	25	=	50
9.	25	+	15	=	40
10.	22	+	15	=	37

Oefening 4
1.	14	+	9	=	23
2.	12	+	9	=	21
3.	7	+	5	=	12
4.	18	+	15	=	33
5.	24	+	15	=	39
6.	19	+	8	=	27
7.	18	+	11	=	29
8.	16	+	12	=	28
9.	19	+	12	=	31
10.	21	+	8	=	29