Erafsommen tot 20

Aftrekken

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Aftrekken

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

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

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

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