Erbijsommen tot 50

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

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