Erbijsommen en erafsommen tot 50
In de mix
1.
20
20
+
=
2.
50
35
–
=
3.
15
10
+
=
4.
35
30
–
=
5.
30
20
–
=
6.
35
10
+
=
7.
30
5
+
=
8.
35
15
+
=
9.
30
15
–
=
10.
10
5
+
=
11.
30
20
–
=
12.
10
5
+
=
13.
35
5
+
=
14.
50
40
–
=
15.
15
10
+
=
16.
50
25
–
=
17.
25
15
–
=
18.
50
35
–
=
19.
15
0
+
=
20.
20
15
–
=
21.
30
15
–
=
22.
25
15
–
=
23.
25
20
–
=
24.
20
15
–
=