Rekensommen met eraf tot 50
Erafsommen
1.
10
–
0
=
2.
30
–
5
=
3.
45
–
40
=
4.
40
–
0
=
5.
40
–
15
=
6.
30
–
15
=
7.
5
–
5
=
8.
40
–
30
=
9.
30
–
25
=
10.
40
–
25
=
11.
25
–
5
=
12.
25
–
25
=
13.
20
–
15
=
14.
5
–
5
=
15.
5
–
5
=
16.
10
–
10
=
17.
20
–
10
=
18.
50
–
35
=
19.
5
–
0
=
20.
45
–
25
=
21.
5
–
5
=
22.
20
–
5
=
23.
30
–
0
=
24.
45
–
45
=
25.
25
–
25
=
26.
50
–
50
=
27.
25
–
25
=
28.
45
–
10
=
29.
40
–
10
=
30.
30
–
25
=
31.
5
–
0
=
32.
25
–
15
=
33.
45
–
5
=
34.
5
–
5
=
35.
50
–
25
=
36.
10
–
10
=
Rekensommen met eraf tot 50
| ANTWOORDEN
Erafsommen
1.
10
–
0
=
10
2.
30
–
5
=
25
3.
45
–
40
=
5
4.
40
–
0
=
40
5.
40
–
15
=
25
6.
30
–
15
=
15
7.
5
–
5
=
0
8.
40
–
30
=
10
9.
30
–
25
=
5
10.
40
–
25
=
15
11.
25
–
5
=
20
12.
25
–
25
=
0
13.
20
–
15
=
5
14.
5
–
5
=
0
15.
5
–
5
=
0
16.
10
–
10
=
0
17.
20
–
10
=
10
18.
50
–
35
=
15
19.
5
–
0
=
5
20.
45
–
25
=
20
21.
5
–
5
=
0
22.
20
–
5
=
15
23.
30
–
0
=
30
24.
45
–
45
=
0
25.
25
–
25
=
0
26.
50
–
50
=
0
27.
25
–
25
=
0
28.
45
–
10
=
35
29.
40
–
10
=
30
30.
30
–
25
=
5
31.
5
–
0
=
5
32.
25
–
15
=
10
33.
45
–
5
=
40
34.
5
–
5
=
0
35.
50
–
25
=
25
36.
10
–
10
=
0