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