Erafsommen oplossen tot 100

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

Erafsommen oplossen tot 100
| ANTWOORDEN

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