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