Oefen de erbijsommen tot 20

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

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