Erafsommen oplossen tot 20

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

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