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