Maak de erafsom tot 20

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

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