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