Erbijsommen en erafsommen tot 50
In de mix
1.
20
15
–
=
2.
35
15
+
=
3.
20
25
+
=
4.
40
5
+
=
5.
30
5
+
=
6.
10
5
+
=
7.
15
15
+
=
8.
15
10
+
=
9.
25
15
+
=
10.
25
20
+
=
11.
20
10
+
=
12.
25
20
–
=
13.
15
10
+
=
14.
50
45
–
=
15.
20
15
–
=
16.
20
15
+
=
17.
45
5
+
=
18.
35
15
–
=
19.
15
15
+
=
20.
15
10
+
=
21.
40
35
–
=
22.
30
25
–
=
23.
35
20
–
=
24.
20
15
–
=