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