Erafsommen oplossen tot 50

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

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