Maak de erafsom tot 20

Erafsommen
1.
11
–
10
=
2.
18
–
17
=
3.
7
–
6
=
4.
19
–
9
=
5.
17
–
4
=
6.
1
–
1
=
7.
6
–
0
=
8.
6
–
3
=
9.
8
–
5
=
10.
20
–
16
=
11.
11
–
10
=
12.
3
–
1
=
13.
19
–
14
=
14.
11
–
6
=
15.
2
–
1
=
16.
1
–
0
=
17.
10
–
9
=
18.
17
–
7
=
19.
13
–
2
=
20.
8
–
3
=
21.
16
–
8
=
22.
12
–
5
=
23.
16
–
11
=
24.
9
–
4
=
25.
6
–
6
=
26.
8
–
1
=
27.
7
–
6
=
28.
17
–
17
=
29.
5
–
0
=
30.
5
–
4
=
31.
8
–
4
=
32.
5
–
3
=
33.
11
–
1
=
34.
13
–
5
=
35.
3
–
1
=
36.
15
–
5
=
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Maak de erafsom tot 20
| ANTWOORDEN

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