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