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