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