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