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