Maak de erafsom tot 20

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

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