Erafsommen tot 50 maken

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

Erafsommen tot 50 maken
| ANTWOORDEN

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