Erafsommen oplossen tot 50

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

Erafsommen oplossen tot 50
| ANTWOORDEN

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