Erafsommen oplossen tot 100

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

Erafsommen oplossen tot 100
| ANTWOORDEN

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