Oefen de erafsommen tot 20

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

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