Erafsommen oplossen tot 20

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

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