Los de erbijsom tot 50 op

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

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