Rekensommen met eraf tot 100

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

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