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