Oefen de erafsommen tot 12

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

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