Erafsommen oplossen tot 12

Erafsommen
1.
11
–
9
=
2.
11
–
0
=
3.
11
–
4
=
4.
2
–
1
=
5.
11
–
10
=
6.
7
–
4
=
7.
5
–
5
=
8.
2
–
1
=
9.
10
–
4
=
10.
5
–
0
=
11.
9
–
9
=
12.
3
–
0
=
13.
4
–
0
=
14.
1
–
0
=
15.
6
–
6
=
16.
1
–
1
=
17.
2
–
0
=
18.
8
–
8
=
19.
12
–
5
=
20.
6
–
5
=
21.
2
–
2
=
22.
7
–
4
=
23.
5
–
4
=
24.
8
–
2
=
25.
11
–
9
=
26.
11
–
5
=
27.
8
–
3
=
28.
11
–
8
=
29.
12
–
5
=
30.
11
–
7
=
31.
10
–
4
=
32.
1
–
0
=
33.
6
–
5
=
34.
3
–
0
=
35.
5
–
3
=
36.
3
–
3
=
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Erafsommen oplossen tot 12
| ANTWOORDEN

Erafsommen
1.
11
–
9
=
2
2.
11
–
0
=
11
3.
11
–
4
=
7
4.
2
–
1
=
1
5.
11
–
10
=
1
6.
7
–
4
=
3
7.
5
–
5
=
0
8.
2
–
1
=
1
9.
10
–
4
=
6
10.
5
–
0
=
5
11.
9
–
9
=
0
12.
3
–
0
=
3
13.
4
–
0
=
4
14.
1
–
0
=
1
15.
6
–
6
=
0
16.
1
–
1
=
0
17.
2
–
0
=
2
18.
8
–
8
=
0
19.
12
–
5
=
7
20.
6
–
5
=
1
21.
2
–
2
=
0
22.
7
–
4
=
3
23.
5
–
4
=
1
24.
8
–
2
=
6
25.
11
–
9
=
2
26.
11
–
5
=
6
27.
8
–
3
=
5
28.
11
–
8
=
3
29.
12
–
5
=
7
30.
11
–
7
=
4
31.
10
–
4
=
6
32.
1
–
0
=
1
33.
6
–
5
=
1
34.
3
–
0
=
3
35.
5
–
3
=
2
36.
3
–
3
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen