Erafsommen oplossen tot 50

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

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