Erafsommen oplossen tot 50

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

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