Erbijsommen tot 50

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

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