Erafsommen tot 20

Erafsommen

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

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

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

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

Erafsommen tot 20
| ANTWOORDEN

Erafsommen

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

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

Oefening 3
1.	15	-	15	=	0
2.	19	-	6	=	13
3.	14	-	10	=	4
4.	18	-	9	=	9
5.	20	-	1	=	19
6.	18	-	17	=	1
7.	18	-	13	=	5
8.	16	-	9	=	7
9.	15	-	12	=	3
10.	10	-	6	=	4

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