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