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