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