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