Erafsommen oplossen tot 20

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

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