Los de som tot 50 op

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

Los de som tot 50 op
| ANTWOORDEN

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