Erafsommen met vlekken tot en met 20

Erafsommen

Oefening 1
1.	15	-		=	13
2.	10	-		=	3
3.	19	-		=	11
4.	3	-		=	2
5.	20	-		=	16
6.	17	-		=	15
7.	20	-		=	9
8.	19	-		=	16
9.	4	-		=	3
10.	18	-		=	8

Oefening 2
1.	14	-		=	9
2.	2	-		=	1
3.	16	-		=	15
4.	16	-		=	0
5.	14	-		=	4
6.	14	-		=	6
7.	12	-		=	7
8.	9	-		=	1
9.	20	-		=	6
10.	9	-		=	4

Oefening 3
1.	3	-		=	1
2.	19	-		=	2
3.	8	-		=	2
4.	13	-		=	10
5.	12	-		=	8
6.	8	-		=	5
7.	19	-		=	6
8.	9	-		=	4
9.	15	-		=	2
10.	17	-		=	1

Oefening 4
1.	19	-		=	17
2.	3	-		=	0
3.	19	-		=	9
4.	20	-		=	5
5.	14	-		=	1
6.	8	-		=	4
7.	14	-		=	0
8.	18	-		=	17
9.	15	-		=	5
10.	16	-		=	6

Erafsommen met vlekken tot en met 20
| ANTWOORDEN

Erafsommen

Oefening 1
1.	15	-	2	=	13
2.	10	-	7	=	3
3.	19	-	8	=	11
4.	3	-	1	=	2
5.	20	-	4	=	16
6.	17	-	2	=	15
7.	20	-	11	=	9
8.	19	-	3	=	16
9.	4	-	1	=	3
10.	18	-	10	=	8

Oefening 2
1.	14	-	5	=	9
2.	2	-	1	=	1
3.	16	-	1	=	15
4.	16	-	16	=	0
5.	14	-	10	=	4
6.	14	-	8	=	6
7.	12	-	5	=	7
8.	9	-	8	=	1
9.	20	-	14	=	6
10.	9	-	5	=	4

Oefening 3
1.	3	-	2	=	1
2.	19	-	17	=	2
3.	8	-	6	=	2
4.	13	-	3	=	10
5.	12	-	4	=	8
6.	8	-	3	=	5
7.	19	-	13	=	6
8.	9	-	5	=	4
9.	15	-	13	=	2
10.	17	-	16	=	1

Oefening 4
1.	19	-	2	=	17
2.	3	-	3	=	0
3.	19	-	10	=	9
4.	20	-	15	=	5
5.	14	-	13	=	1
6.	8	-	4	=	4
7.	14	-	14	=	0
8.	18	-	1	=	17
9.	15	-	10	=	5
10.	16	-	10	=	6