Los de erbijsom tot 50 op

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

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