Erafsommen oplossen tot 50

Erafsommen
1.
10
–
5
=
2.
35
–
20
=
3.
50
–
50
=
4.
25
–
15
=
5.
50
–
10
=
6.
15
–
15
=
7.
30
–
5
=
8.
35
–
35
=
9.
25
–
20
=
10.
45
–
15
=
11.
35
–
30
=
12.
40
–
5
=
13.
5
–
5
=
14.
50
–
0
=
15.
35
–
20
=
16.
35
–
20
=
17.
20
–
20
=
18.
15
–
10
=
19.
40
–
20
=
20.
20
–
5
=
21.
20
–
20
=
22.
10
–
0
=
23.
30
–
30
=
24.
45
–
25
=
25.
20
–
10
=
26.
5
–
0
=
27.
20
–
15
=
28.
45
–
25
=
29.
5
–
0
=
30.
25
–
0
=
31.
50
–
15
=
32.
50
–
25
=
33.
45
–
20
=
34.
50
–
15
=
35.
40
–
0
=
36.
50
–
0
=
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Erafsommen oplossen tot 50
| ANTWOORDEN

Erafsommen
1.
10
–
5
=
5
2.
35
–
20
=
15
3.
50
–
50
=
0
4.
25
–
15
=
10
5.
50
–
10
=
40
6.
15
–
15
=
0
7.
30
–
5
=
25
8.
35
–
35
=
0
9.
25
–
20
=
5
10.
45
–
15
=
30
11.
35
–
30
=
5
12.
40
–
5
=
35
13.
5
–
5
=
0
14.
50
–
0
=
50
15.
35
–
20
=
15
16.
35
–
20
=
15
17.
20
–
20
=
0
18.
15
–
10
=
5
19.
40
–
20
=
20
20.
20
–
5
=
15
21.
20
–
20
=
0
22.
10
–
0
=
10
23.
30
–
30
=
0
24.
45
–
25
=
20
25.
20
–
10
=
10
26.
5
–
0
=
5
27.
20
–
15
=
5
28.
45
–
25
=
20
29.
5
–
0
=
5
30.
25
–
0
=
25
31.
50
–
15
=
35
32.
50
–
25
=
25
33.
45
–
20
=
25
34.
50
–
15
=
35
35.
40
–
0
=
40
36.
50
–
0
=
50
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen