Erbijsommen tot 50

Erbijsommen
1.
30
+
20
=
35
50
2.
45
+
0
=
30
45
3.
30
+
0
=
30
25
4.
40
+
0
=
20
40
5.
45
+
5
=
50
45
6.
35
+
0
=
35
30
7.
35
+
5
=
40
20
8.
30
+
15
=
45
25
9.
35
+
0
=
30
35
10.
20
+
0
=
30
20
11.
50
+
0
=
40
50
12.
45
+
0
=
35
45
13.
20
+
20
=
40
30
14.
45
+
5
=
50
45
15.
25
+
5
=
30
35
16.
30
+
10
=
40
20
17.
45
+
0
=
30
45
18.
40
+
5
=
25
45
19.
30
+
5
=
45
35
20.
35
+
5
=
20
40
21.
15
+
0
=
10
15
22.
35
+
10
=
30
45
23.
40
+
5
=
45
40
24.
35
+
15
=
40
50
25.
50
+
0
=
45
50
26.
35
+
15
=
30
50
27.
45
+
5
=
50
35
28.
40
+
10
=
50
40
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Erbijsommen tot 50
| ANTWOORDEN

Erbijsommen
1.
30
+
20
=
35
50
2.
45
+
0
=
30
45
3.
30
+
0
=
30
25
4.
40
+
0
=
20
40
5.
45
+
5
=
50
45
6.
35
+
0
=
35
30
7.
35
+
5
=
40
20
8.
30
+
15
=
45
25
9.
35
+
0
=
30
35
10.
20
+
0
=
30
20
11.
50
+
0
=
40
50
12.
45
+
0
=
35
45
13.
20
+
20
=
40
30
14.
45
+
5
=
50
45
15.
25
+
5
=
30
35
16.
30
+
10
=
40
20
17.
45
+
0
=
30
45
18.
40
+
5
=
25
45
19.
30
+
5
=
45
35
20.
35
+
5
=
20
40
21.
15
+
0
=
10
15
22.
35
+
10
=
30
45
23.
40
+
5
=
45
40
24.
35
+
15
=
40
50
25.
50
+
0
=
45
50
26.
35
+
15
=
30
50
27.
45
+
5
=
50
35
28.
40
+
10
=
50
40
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen