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