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