Los de som tot 50 op

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

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