Rekensommen met eraf tot 100

Erafsommen
1.
10
–
0
=
2.
10
–
0
=
3.
10
–
0
=
4.
30
–
20
=
5.
20
–
0
=
6.
10
–
5
=
7.
80
–
15
=
8.
10
–
0
=
9.
60
–
20
=
10.
35
–
30
=
11.
70
–
15
=
12.
20
–
10
=
13.
30
–
30
=
14.
30
–
30
=
15.
45
–
20
=
16.
15
–
15
=
17.
25
–
5
=
18.
35
–
10
=
19.
60
–
35
=
20.
55
–
25
=
21.
100
–
80
=
22.
5
–
5
=
23.
60
–
25
=
24.
90
–
60
=
25.
75
–
35
=
26.
30
–
5
=
27.
60
–
5
=
28.
25
–
20
=
29.
40
–
15
=
30.
95
–
25
=
31.
85
–
60
=
32.
100
–
40
=
33.
10
–
10
=
34.
90
–
5
=
35.
90
–
90
=
36.
95
–
10
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
10
–
0
=
10
2.
10
–
0
=
10
3.
10
–
0
=
10
4.
30
–
20
=
10
5.
20
–
0
=
20
6.
10
–
5
=
5
7.
80
–
15
=
65
8.
10
–
0
=
10
9.
60
–
20
=
40
10.
35
–
30
=
5
11.
70
–
15
=
55
12.
20
–
10
=
10
13.
30
–
30
=
0
14.
30
–
30
=
0
15.
45
–
20
=
25
16.
15
–
15
=
0
17.
25
–
5
=
20
18.
35
–
10
=
25
19.
60
–
35
=
25
20.
55
–
25
=
30
21.
100
–
80
=
20
22.
5
–
5
=
0
23.
60
–
25
=
35
24.
90
–
60
=
30
25.
75
–
35
=
40
26.
30
–
5
=
25
27.
60
–
5
=
55
28.
25
–
20
=
5
29.
40
–
15
=
25
30.
95
–
25
=
70
31.
85
–
60
=
25
32.
100
–
40
=
60
33.
10
–
10
=
0
34.
90
–
5
=
85
35.
90
–
90
=
0
36.
95
–
10
=
85
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen