Erafsommen oplossen tot 50

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

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