Erbij en eraf tot 12
In de mix
|
1.
11 + 0 =
11
1
|
2.
5 + 7 =
12
1
|
3.
11 + 0 =
1
11
|
4.
2 + 4 =
1
6
|
|
5.
5 – 1 =
1
4
|
6.
4 – 0 =
1
4
|
7.
10 – 8 =
1
2
|
8.
5 + 1 =
6
1
|
|
9.
2 – 1 =
1
2
|
10.
11 – 11 =
2
0
|
11.
3 + 2 =
1
5
|
12.
8 – 4 =
4
1
|
|
13.
8 + 0 =
8
1
|
14.
5 + 2 =
1
7
|
15.
9 – 3 =
1
6
|
16.
10 + 2 =
1
12
|
|
17.
4 + 4 =
8
1
|
18.
2 – 2 =
2
0
|
19.
9 – 4 =
1
5
|
20.
11 – 1 =
1
10
|