Erafsommen oplossen tot 20

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

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