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