Supersnelle sommen tot 50

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

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