Oefen de erbijsommen tot 20

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

Oefen de erbijsommen tot 20
| ANTWOORDEN

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