Los de erbijsom tot 50 op

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

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