Erafsommen oplossen tot 50

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

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