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