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