Los de erbijsom tot 50 op

Erbijsommen
1.
15
+
35
=
50
45
40
35
2.
5
+
10
=
10
15
20
25
3.
5
+
45
=
45
35
40
50
4.
5
+
45
=
50
40
35
45
5.
5
+
45
=
35
40
30
50
6.
5
+
40
=
40
45
25
30
7.
5
+
30
=
35
30
45
25
8.
20
+
25
=
40
45
25
30
9.
20
+
25
=
45
35
30
25
10.
10
+
25
=
30
45
35
25
11.
15
+
35
=
35
50
30
45
12.
15
+
20
=
25
30
45
35
13.
0
+
30
=
30
35
40
20
14.
20
+
25
=
25
35
40
45
15.
0
+
50
=
35
40
50
30
16.
10
+
25
=
45
30
35
40
17.
0
+
45
=
45
30
25
40
18.
25
+
25
=
40
30
50
45
19.
0
+
50
=
30
50
45
40
20.
0
+
10
=
0
5
10
15
21.
15
+
30
=
40
30
45
35
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Los de erbijsom tot 50 op
| ANTWOORDEN

Erbijsommen
1.
15
+
35
=
50
45
40
35
2.
5
+
10
=
10
15
20
25
3.
5
+
45
=
45
35
40
50
4.
5
+
45
=
50
40
35
45
5.
5
+
45
=
35
40
30
50
6.
5
+
40
=
40
45
25
30
7.
5
+
30
=
35
30
45
25
8.
20
+
25
=
40
45
25
30
9.
20
+
25
=
45
35
30
25
10.
10
+
25
=
30
45
35
25
11.
15
+
35
=
35
50
30
45
12.
15
+
20
=
25
30
45
35
13.
0
+
30
=
30
35
40
20
14.
20
+
25
=
25
35
40
45
15.
0
+
50
=
35
40
50
30
16.
10
+
25
=
45
30
35
40
17.
0
+
45
=
45
30
25
40
18.
25
+
25
=
40
30
50
45
19.
0
+
50
=
30
50
45
40
20.
0
+
10
=
0
5
10
15
21.
15
+
30
=
40
30
45
35
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen