Erafsommen tot 20

Aftrekken

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Aftrekken

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

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

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

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