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