Erbijsom en erafsom maken tot 50
In de mix
1.
15
0
+
=
2.
15
10
+
=
3.
35
30
–
=
4.
30
15
–
=
5.
40
10
+
=
6.
40
15
–
=
7.
35
15
–
=
8.
30
20
–
=
9.
45
25
–
=
10.
30
5
+
=
11.
20
10
+
=
12.
10
5
+
=
13.
45
20
–
=
14.
20
15
–
=
15.
15
5
+
=
16.
40
30
–
=
17.
20
15
–
=
18.
15
5
+
=
19.
15
5
+
=
20.
15
20
+
=
21.
35
15
–
=
22.
10
5
+
=
23.
50
30
–
=
24.
25
5
+
=