Erafsommen oplossen tot 100

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

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