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