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