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