Maak de erafsom tot 20

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

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