Erafsommen tot 20

Erafsommen

Oefening 1
1.	16	-	12	=
2.	12	-	11	=
3.	4	-	4	=
4.	15	-	15	=
5.	7	-	3	=
6.	16	-	13	=
7.	18	-	17	=
8.	19	-	8	=
9.	15	-	1	=
10.	8	-	7	=

Oefening 2
1.	17	-	7	=
2.	18	-	18	=
3.	19	-	15	=
4.	15	-	12	=
5.	16	-	16	=
6.	19	-	3	=
7.	15	-	4	=
8.	20	-	17	=
9.	16	-	3	=
10.	17	-	14	=

Oefening 3
1.	18	-	9	=
2.	17	-	15	=
3.	18	-	12	=
4.	14	-	13	=
5.	19	-	1	=
6.	10	-	1	=
7.	20	-	11	=
8.	16	-	9	=
9.	8	-	2	=
10.	15	-	11	=

Oefening 4
1.	20	-	12	=
2.	5	-	1	=
3.	15	-	11	=
4.	5	-	4	=
5.	17	-	15	=
6.	19	-	6	=
7.	20	-	9	=
8.	8	-	5	=
9.	15	-	2	=
10.	14	-	5	=

Erafsommen tot 20
| ANTWOORDEN

Erafsommen

Oefening 1
1.	16	-	12	=	4
2.	12	-	11	=	1
3.	4	-	4	=	0
4.	15	-	15	=	0
5.	7	-	3	=	4
6.	16	-	13	=	3
7.	18	-	17	=	1
8.	19	-	8	=	11
9.	15	-	1	=	14
10.	8	-	7	=	1

Oefening 2
1.	17	-	7	=	10
2.	18	-	18	=	0
3.	19	-	15	=	4
4.	15	-	12	=	3
5.	16	-	16	=	0
6.	19	-	3	=	16
7.	15	-	4	=	11
8.	20	-	17	=	3
9.	16	-	3	=	13
10.	17	-	14	=	3

Oefening 3
1.	18	-	9	=	9
2.	17	-	15	=	2
3.	18	-	12	=	6
4.	14	-	13	=	1
5.	19	-	1	=	18
6.	10	-	1	=	9
7.	20	-	11	=	9
8.	16	-	9	=	7
9.	8	-	2	=	6
10.	15	-	11	=	4

Oefening 4
1.	20	-	12	=	8
2.	5	-	1	=	4
3.	15	-	11	=	4
4.	5	-	4	=	1
5.	17	-	15	=	2
6.	19	-	6	=	13
7.	20	-	9	=	11
8.	8	-	5	=	3
9.	15	-	2	=	13
10.	14	-	5	=	9