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