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