Oefen de erbijsommen tot 20

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

Erbijsommen
1.
12 + 7 =
19
2.
17 + 2 =
19
3.
19 + 1 =
20
4.
1 + 3 =
4
5.
18 + 0 =
18
6.
15 + 5 =
20
7.
13 + 3 =
16
8.
18 + 2 =
20
9.
9 + 10 =
19
10.
13 + 1 =
14
11.
3 + 11 =
14
12.
19 + 1 =
20
13.
9 + 11 =
20
14.
15 + 0 =
15
15.
19 + 0 =
19
16.
6 + 4 =
10
17.
1 + 7 =
8
18.
5 + 1 =
6
19.
9 + 2 =
11
20.
7 + 9 =
16
21.
14 + 5 =
19
22.
6 + 2 =
8
23.
4 + 8 =
12
24.
6 + 3 =
9
25.
12 + 8 =
20
26.
14 + 1 =
15
27.
4 + 10 =
14
28.
5 + 14 =
19
29.
4 + 11 =
15
30.
18 + 1 =
19
31.
15 + 1 =
16
32.
12 + 7 =
19
33.
14 + 2 =
16
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen