Erafsommen oplossen tot 20

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

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