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