Erafsommen tot 20

Erafsommen

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Erafsommen

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

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

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

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