Erbijsommen tot 50

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

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