Maak de erafsom tot 50

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

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