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