Supersnelle sommen tot 20
Erbijsommen
|
1.
11 + 4 =
2
5
1
15
|
2.
18 + 2 =
4
20
15
8
|
3.
1 + 0 =
6
5
2
1
|
4.
10 + 3 =
9
7
13
10
|
|
5.
14 + 1 =
6
3
15
4
|
6.
18 + 1 =
7
8
19
4
|
7.
11 + 5 =
4
2
16
11
|
8.
12 + 3 =
7
9
5
15
|
|
9.
16 + 1 =
8
7
9
17
|
10.
14 + 2 =
2
8
11
16
|
11.
13 + 5 =
2
3
1
18
|
12.
10 + 0 =
9
8
10
12
|
|
13.
15 + 0 =
5
10
2
15
|
14.
20 + 0 =
9
7
20
3
|
15.
5 + 4 =
9
1
10
4
|
16.
17 + 3 =
9
12
11
20
|
|
17.
1 + 3 =
1
7
6
4
|
18.
14 + 0 =
2
5
12
14
|
19.
20 + 0 =
3
14
20
4
|
20.
2 + 6 =
5
7
13
8
|