Maak de erafsom tot 20

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

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