Maak de erafsom tot 50

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

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