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