Oefen de erbijsommen tot 20

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

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