Oefen de erafsommen tot 12

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

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