Erbij en eraf tot 50
In de mix
|
1.
3 – 1 =
1
2
|
2.
22 – 1 =
21
2
|
3.
1 – 0 =
2
1
|
4.
12 – 12 =
2
0
|
|
5.
23 – 12 =
1
11
|
6.
9 + 16 =
25
2
|
7.
27 – 21 =
6
1
|
8.
37 + 9 =
46
2
|
|
9.
47 + 0 =
47
2
|
10.
13 – 2 =
11
1
|
11.
29 – 14 =
1
15
|
12.
7 + 39 =
2
46
|
|
13.
16 – 11 =
1
5
|
14.
41 – 8 =
33
2
|
15.
47 – 27 =
20
2
|
16.
32 + 9 =
41
2
|
|
17.
29 + 5 =
2
34
|
18.
42 + 6 =
48
2
|
19.
30 – 17 =
13
1
|
20.
8 + 40 =
2
48
|