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