Oefen de erbijsommen tot 20

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

Oefen de erbijsommen tot 20
| ANTWOORDEN

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