Oefen de erafsommen tot 20

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

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