Erafsommen tot 20

Aftrekken

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Aftrekken

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

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

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

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