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