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