Erbijsommen tot 50

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

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