Supersnelle sommen tot 50

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

Supersnelle sommen tot 50
| ANTWOORDEN

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