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