Erafsommen tot 20

Erafsommen

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Erafsommen

Oefening 1
1.	13	-	9	=	4
2.	3	-	1	=	2
3.	15	-	2	=	13
4.	18	-	4	=	14
5.	20	-	3	=	17
6.	10	-	9	=	1
7.	18	-	3	=	15
8.	20	-	6	=	14
9.	3	-	3	=	0
10.	12	-	6	=	6

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

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

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