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