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