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