Reken de erbijsom tot 20 uit

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

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