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