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