Los de erbijsom tot 50 op

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

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