Erbijsommen en erafsommen tot 100
In de mix
1.
40
30
–
=
2.
80
60
–
=
3.
30
20
–
=
4.
80
20
+
=
5.
50
20
–
=
6.
50
30
–
=
7.
50
20
+
=
8.
100
40
–
=
9.
60
40
–
=
10.
30
60
+
=
11.
80
20
–
=
12.
20
50
+
=
13.
20
0
+
=
14.
10
10
+
=
15.
10
10
+
=
16.
60
20
–
=
17.
40
10
+
=
18.
90
10
+
=
19.
50
40
–
=
20.
50
10
+
=
21.
20
70
+
=
22.
20
20
+
=
23.
40
30
–
=
24.
20
10
+
=