Reken de sommen tot 50 uit

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

Reken de sommen tot 50 uit
| ANTWOORDEN

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