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