Reken de erbijsom tot 20 uit

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

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