Rekensommen met eraf tot 100

Erafsommen
1.
85
–
85
=
2.
10
–
5
=
3.
70
–
20
=
4.
20
–
0
=
5.
5
–
0
=
6.
25
–
10
=
7.
80
–
40
=
8.
70
–
70
=
9.
60
–
15
=
10.
30
–
30
=
11.
55
–
35
=
12.
80
–
45
=
13.
25
–
0
=
14.
30
–
20
=
15.
65
–
60
=
16.
85
–
60
=
17.
5
–
0
=
18.
55
–
30
=
19.
50
–
40
=
20.
70
–
10
=
21.
15
–
0
=
22.
90
–
90
=
23.
20
–
20
=
24.
60
–
15
=
25.
65
–
65
=
26.
40
–
20
=
27.
55
–
35
=
28.
55
–
5
=
29.
35
–
10
=
30.
80
–
50
=
31.
55
–
10
=
32.
75
–
55
=
33.
25
–
5
=
34.
30
–
25
=
35.
20
–
15
=
36.
40
–
20
=
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
85
–
85
=
0
2.
10
–
5
=
5
3.
70
–
20
=
50
4.
20
–
0
=
20
5.
5
–
0
=
5
6.
25
–
10
=
15
7.
80
–
40
=
40
8.
70
–
70
=
0
9.
60
–
15
=
45
10.
30
–
30
=
0
11.
55
–
35
=
20
12.
80
–
45
=
35
13.
25
–
0
=
25
14.
30
–
20
=
10
15.
65
–
60
=
5
16.
85
–
60
=
25
17.
5
–
0
=
5
18.
55
–
30
=
25
19.
50
–
40
=
10
20.
70
–
10
=
60
21.
15
–
0
=
15
22.
90
–
90
=
0
23.
20
–
20
=
0
24.
60
–
15
=
45
25.
65
–
65
=
0
26.
40
–
20
=
20
27.
55
–
35
=
20
28.
55
–
5
=
50
29.
35
–
10
=
25
30.
80
–
50
=
30
31.
55
–
10
=
45
32.
75
–
55
=
20
33.
25
–
5
=
20
34.
30
–
25
=
5
35.
20
–
15
=
5
36.
40
–
20
=
20
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen