Erafsommen oplossen tot 50

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

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