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