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