Oefen de erbijsommen tot 20

Erbijsommen
1.
12 + 6 =
2.
20 + 0 =
3.
11 + 4 =
4.
8 + 1 =
5.
1 + 14 =
6.
15 + 1 =
7.
6 + 5 =
8.
4 + 16 =
9.
10 + 10 =
10.
12 + 1 =
11.
2 + 13 =
12.
13 + 0 =
13.
17 + 0 =
14.
8 + 11 =
15.
12 + 2 =
16.
5 + 13 =
17.
7 + 6 =
18.
6 + 5 =
19.
5 + 2 =
20.
11 + 7 =
21.
4 + 16 =
22.
8 + 10 =
23.
4 + 4 =
24.
14 + 4 =
25.
18 + 0 =
26.
9 + 11 =
27.
17 + 0 =
28.
15 + 0 =
29.
2 + 11 =
30.
17 + 3 =
31.
13 + 1 =
32.
4 + 3 =
33.
4 + 6 =

Oefen de erbijsommen tot 20
| ANTWOORDEN

Erbijsommen
1.
12 + 6 =
18
2.
20 + 0 =
20
3.
11 + 4 =
15
4.
8 + 1 =
9
5.
1 + 14 =
15
6.
15 + 1 =
16
7.
6 + 5 =
11
8.
4 + 16 =
20
9.
10 + 10 =
20
10.
12 + 1 =
13
11.
2 + 13 =
15
12.
13 + 0 =
13
13.
17 + 0 =
17
14.
8 + 11 =
19
15.
12 + 2 =
14
16.
5 + 13 =
18
17.
7 + 6 =
13
18.
6 + 5 =
11
19.
5 + 2 =
7
20.
11 + 7 =
18
21.
4 + 16 =
20
22.
8 + 10 =
18
23.
4 + 4 =
8
24.
14 + 4 =
18
25.
18 + 0 =
18
26.
9 + 11 =
20
27.
17 + 0 =
17
28.
15 + 0 =
15
29.
2 + 11 =
13
30.
17 + 3 =
20
31.
13 + 1 =
14
32.
4 + 3 =
7
33.
4 + 6 =
10