Erafsommen oplossen tot 20

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

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