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