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