Rekensommen met eraf tot 50

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

Rekensommen met eraf tot 50
| ANTWOORDEN

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