Oefen met erbij en eraf tot 50
In de mix
1.
35
15
–
=
2.
40
25
–
=
3.
45
40
–
=
4.
20
15
–
=
5.
10
5
+
=
6.
35
30
–
=
7.
10
5
+
=
8.
20
20
+
=
9.
50
45
–
=
10.
15
15
+
=
11.
20
5
+
=
12.
20
15
–
=
13.
50
25
–
=
14.
40
25
–
=
15.
50
25
–
=
16.
30
20
–
=
17.
25
25
+
=
18.
15
5
+
=
19.
15
0
+
=
20.
25
10
+
=
21.
25
15
–
=
22.
30
5
+
=
23.
25
25
+
=
24.
50
25
–
=