Erafsommen tot 20

Aftrekken

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Aftrekken

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

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

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

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