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