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