Rekensommen met eraf tot 100

Erafsommen
1.
20
–
15
=
2.
70
–
20
=
3.
20
–
15
=
4.
60
–
10
=
5.
100
–
95
=
6.
55
–
50
=
7.
40
–
35
=
8.
45
–
35
=
9.
10
–
0
=
10.
75
–
45
=
11.
80
–
45
=
12.
55
–
55
=
13.
100
–
35
=
14.
50
–
25
=
15.
45
–
45
=
16.
45
–
30
=
17.
30
–
25
=
18.
75
–
10
=
19.
25
–
10
=
20.
20
–
10
=
21.
55
–
35
=
22.
25
–
25
=
23.
20
–
0
=
24.
75
–
30
=
25.
90
–
45
=
26.
90
–
40
=
27.
70
–
0
=
28.
75
–
15
=
29.
100
–
30
=
30.
95
–
60
=
31.
65
–
10
=
32.
80
–
70
=
33.
70
–
30
=
34.
80
–
65
=
35.
85
–
45
=
36.
75
–
35
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
20
–
15
=
5
2.
70
–
20
=
50
3.
20
–
15
=
5
4.
60
–
10
=
50
5.
100
–
95
=
5
6.
55
–
50
=
5
7.
40
–
35
=
5
8.
45
–
35
=
10
9.
10
–
0
=
10
10.
75
–
45
=
30
11.
80
–
45
=
35
12.
55
–
55
=
0
13.
100
–
35
=
65
14.
50
–
25
=
25
15.
45
–
45
=
0
16.
45
–
30
=
15
17.
30
–
25
=
5
18.
75
–
10
=
65
19.
25
–
10
=
15
20.
20
–
10
=
10
21.
55
–
35
=
20
22.
25
–
25
=
0
23.
20
–
0
=
20
24.
75
–
30
=
45
25.
90
–
45
=
45
26.
90
–
40
=
50
27.
70
–
0
=
70
28.
75
–
15
=
60
29.
100
–
30
=
70
30.
95
–
60
=
35
31.
65
–
10
=
55
32.
80
–
70
=
10
33.
70
–
30
=
40
34.
80
–
65
=
15
35.
85
–
45
=
40
36.
75
–
35
=
40
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen