Oefen de erbijsommen tot 20

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

Oefen de erbijsommen tot 20
| ANTWOORDEN

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