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