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