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