Erbij en eraf tot 50
In de mix
|
1.
20 + 25 =
2
45
|
2.
30 + 19 =
49
2
|
3.
13 – 11 =
2
1
|
4.
13 – 13 =
2
0
|
|
5.
35 – 9 =
2
26
|
6.
47 – 13 =
34
2
|
7.
29 + 2 =
2
31
|
8.
36 + 11 =
47
2
|
|
9.
3 – 3 =
2
0
|
10.
20 + 14 =
34
2
|
11.
31 – 19 =
1
12
|
12.
8 – 2 =
1
6
|
|
13.
20 – 16 =
4
1
|
14.
45 + 2 =
47
2
|
15.
34 + 3 =
37
2
|
16.
42 – 37 =
1
5
|
|
17.
49 + 0 =
49
2
|
18.
49 + 0 =
2
49
|
19.
49 + 1 =
50
2
|
20.
46 – 30 =
2
16
|