Maak de erafsom tot 50

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

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