Reken de erbijsom tot 50 uit

Erbijsommen
1.
50
+
0
=
2.
30
+
20
=
3.
15
+
15
=
4.
0
+
50
=
5.
15
+
20
=
6.
15
+
25
=
7.
0
+
45
=
8.
20
+
25
=
9.
20
+
20
=
10.
5
+
45
=
11.
20
+
30
=
12.
40
+
10
=
13.
25
+
15
=
14.
40
+
10
=
15.
10
+
15
=
16.
25
+
0
=
17.
10
+
40
=
18.
10
+
25
=
19.
10
+
10
=
20.
0
+
35
=
21.
5
+
10
=
22.
5
+
40
=
23.
10
+
25
=
24.
15
+
20
=
25.
15
+
30
=
26.
20
+
30
=
27.
15
+
25
=
28.
5
+
25
=
29.
15
+
15
=
30.
45
+
0
=
31.
15
+
30
=
32.
15
+
35
=
33.
50
+
0
=
34.
20
+
0
=
35.
5
+
15
=
36.
30
+
20
=
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Reken de erbijsom tot 50 uit
| ANTWOORDEN

Erbijsommen
1.
50
+
0
=
50
2.
30
+
20
=
50
3.
15
+
15
=
30
4.
0
+
50
=
50
5.
15
+
20
=
35
6.
15
+
25
=
40
7.
0
+
45
=
45
8.
20
+
25
=
45
9.
20
+
20
=
40
10.
5
+
45
=
50
11.
20
+
30
=
50
12.
40
+
10
=
50
13.
25
+
15
=
40
14.
40
+
10
=
50
15.
10
+
15
=
25
16.
25
+
0
=
25
17.
10
+
40
=
50
18.
10
+
25
=
35
19.
10
+
10
=
20
20.
0
+
35
=
35
21.
5
+
10
=
15
22.
5
+
40
=
45
23.
10
+
25
=
35
24.
15
+
20
=
35
25.
15
+
30
=
45
26.
20
+
30
=
50
27.
15
+
25
=
40
28.
5
+
25
=
30
29.
15
+
15
=
30
30.
45
+
0
=
45
31.
15
+
30
=
45
32.
15
+
35
=
50
33.
50
+
0
=
50
34.
20
+
0
=
20
35.
5
+
15
=
20
36.
30
+
20
=
50
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen