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