Maak de erafsom tot 50

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

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