Erafsommen oplossen tot 20

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

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