Rekensommen met erbij en eraf tot 50
In de mix
1.
78
19
+
=
2.
36
13
–
=
3.
14
11
–
=
4.
51
3
–
=
5.
54
3
+
=
6.
100
38
–
=
7.
100
99
–
=
8.
93
60
–
=
9.
47
48
+
=
10.
37
52
+
=
11.
22
62
+
=
12.
28
16
–
=
13.
84
7
+
=
14.
14
27
+
=
15.
98
52
–
=
16.
38
19
–
=
17.
45
41
–
=
18.
38
26
+
=
19.
29
28
+
=
20.
40
29
–
=
21.
25
14
+
=
22.
23
13
–
=
23.
68
8
+
=
24.
60
49
–
=