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