Erbijsommen tot 50

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

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