Erbijsommen tot 50

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

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