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