Erafsommen oplossen tot 50

Erafsommen
1.
25
–
0
=
2.
30
–
30
=
3.
15
–
10
=
4.
30
–
20
=
5.
25
–
0
=
6.
5
–
5
=
7.
15
–
15
=
8.
45
–
10
=
9.
35
–
25
=
10.
35
–
20
=
11.
50
–
40
=
12.
50
–
30
=
13.
20
–
0
=
14.
25
–
20
=
15.
20
–
10
=
16.
45
–
35
=
17.
5
–
5
=
18.
20
–
20
=
19.
15
–
5
=
20.
15
–
5
=
21.
45
–
30
=
22.
40
–
5
=
23.
20
–
10
=
24.
40
–
10
=
25.
45
–
45
=
26.
10
–
0
=
27.
40
–
20
=
28.
5
–
5
=
29.
15
–
5
=
30.
25
–
5
=
31.
15
–
5
=
32.
15
–
5
=
33.
45
–
0
=
34.
50
–
15
=
35.
5
–
5
=
36.
5
–
5
=
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Erafsommen oplossen tot 50
| ANTWOORDEN

Erafsommen
1.
25
–
0
=
25
2.
30
–
30
=
0
3.
15
–
10
=
5
4.
30
–
20
=
10
5.
25
–
0
=
25
6.
5
–
5
=
0
7.
15
–
15
=
0
8.
45
–
10
=
35
9.
35
–
25
=
10
10.
35
–
20
=
15
11.
50
–
40
=
10
12.
50
–
30
=
20
13.
20
–
0
=
20
14.
25
–
20
=
5
15.
20
–
10
=
10
16.
45
–
35
=
10
17.
5
–
5
=
0
18.
20
–
20
=
0
19.
15
–
5
=
10
20.
15
–
5
=
10
21.
45
–
30
=
15
22.
40
–
5
=
35
23.
20
–
10
=
10
24.
40
–
10
=
30
25.
45
–
45
=
0
26.
10
–
0
=
10
27.
40
–
20
=
20
28.
5
–
5
=
0
29.
15
–
5
=
10
30.
25
–
5
=
20
31.
15
–
5
=
10
32.
15
–
5
=
10
33.
45
–
0
=
45
34.
50
–
15
=
35
35.
5
–
5
=
0
36.
5
–
5
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen