Erafsommen oplossen tot 20

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

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