Maak de erafsom tot 20

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

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