Erafsommen tot 20

Erafsommen

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

Oefening 2
1.	18	-	7	=
2.	17	-	3	=
3.	7	-	6	=
4.	20	-	9	=
5.	20	-	17	=
6.	12	-	3	=
7.	8	-	5	=
8.	12	-	11	=
9.	14	-	8	=
10.	18	-	1	=

Oefening 3
1.	12	-	5	=
2.	16	-	6	=
3.	7	-	4	=
4.	18	-	14	=
5.	18	-	5	=
6.	14	-	6	=
7.	20	-	8	=
8.	15	-	14	=
9.	10	-	9	=
10.	18	-	13	=

Oefening 4
1.	15	-	2	=
2.	20	-	18	=
3.	14	-	4	=
4.	6	-	6	=
5.	20	-	14	=
6.	14	-	3	=
7.	16	-	6	=
8.	15	-	14	=
9.	17	-	13	=
10.	12	-	8	=

Erafsommen tot 20
| ANTWOORDEN

Erafsommen

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

Oefening 2
1.	18	-	7	=	11
2.	17	-	3	=	14
3.	7	-	6	=	1
4.	20	-	9	=	11
5.	20	-	17	=	3
6.	12	-	3	=	9
7.	8	-	5	=	3
8.	12	-	11	=	1
9.	14	-	8	=	6
10.	18	-	1	=	17

Oefening 3
1.	12	-	5	=	7
2.	16	-	6	=	10
3.	7	-	4	=	3
4.	18	-	14	=	4
5.	18	-	5	=	13
6.	14	-	6	=	8
7.	20	-	8	=	12
8.	15	-	14	=	1
9.	10	-	9	=	1
10.	18	-	13	=	5

Oefening 4
1.	15	-	2	=	13
2.	20	-	18	=	2
3.	14	-	4	=	10
4.	6	-	6	=	0
5.	20	-	14	=	6
6.	14	-	3	=	11
7.	16	-	6	=	10
8.	15	-	14	=	1
9.	17	-	13	=	4
10.	12	-	8	=	4