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