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