Erafsommen oplossen tot 50

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

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