Reken de erbijsom tot 50 uit

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

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