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